assignment-数字转换训练
python将英文数字转化为阿拉伯数字的方法
在Python中,有很多种方法可以将英文数字转化为阿拉伯数字,本文将介绍几种常用的方法。
无论你是在处理文本数据,还是在进行简单的数字转换操作,这些方法都会帮助你更好地处理数据。
1. 使用字典进行转换在Python中,我们可以使用字典来快速地将英文数字转化为阿拉伯数字。
我们需要创建一个包含英文数字和对应阿拉伯数字的字典。
我们可以通过查找字典来实现转换。
下面是一个示例代码:```pythonnum_dict = {"zero": 0,"one": 1,"two": 2,"three": 3,"four": 4,"five": 5,"six": 6,"seven": 7,"eight": 8,"nine": 9}def convert_to_arabic(text):words = text.split()result = []for word in words:if word.lower() in num_dict:result.append(str(num_dict[word.lower()]))else:result.append(word)return ' '.join(result)text = "I have two apples and three bananas"print(convert_to_arabic(text))```在上面的代码中,我们首先创建了一个包含英文数字和对应阿拉伯数字的字典。
我们定义了一个函数`convert_to_arabic`,该函数将输入的文本按空格分隔成单词,并将单词转化为对应的阿拉伯数字。
我们对一个示例文本进行了转换并打印结果。
math operands should be cast before assignment
math operands should be cast before assignmentMath operands should be cast before assignment,这是一句关于数学操作的重要提示。
它指出在将一个值赋值给另一个变量之前,应该对此值进行转换,以确保期望的结果。
首先,我们必须明白什么是“数学操作”和“强制转换”。
数学操作是指在一个变量上应用的所有运算,包括加、减、乘、除等。
而强制转换指的是在赋值之前,将一个值转换成另一种类型的值,使它们能够相互比较或正确计算。
数学操作常常会因数据类型和操作符不匹配而无法正常工作,这就是为什么在赋值之前,我们必须进行数据类型转换的原因之一。
例如,如果你想要将两个字符串拼接在一起,你必须将它们转换为字符串类型,然后再使用拼接操作符来执行该操作。
另一方面,强制转换还可以用于在比较两个变量的值时避免意外的结果。
当比较不同类型的变量时,如果不进行转换,很可能会得到错误的结果。
比如,如果你试图比较两个数字,一个是字符串类型的“1”,一个是数字类型的1,你会发现它们并不相等,因为它们是不同的类型。
如果在比较之前先转换,将会得到你期望的结果。
强制转换也可以用于确保正确的计算结果。
有时,数学操作可能会因数据类型不匹配而发生错误,这就是为什么我们在进行数学操作之前必须确保变量的类型一致的原因。
例如,如果你想要让一个字符串类型的数字参与计算,你必须先将它转换为数字类型,然后才能正确进行计算。
总之,math operands should be cast before assignment是一句重要的提示。
它指出在赋值之前,我们应该先将变量转换为正确的类型,以便于在比较和计算中避免意外的结果。
数据转换的例子
数据转换的例子以下是一些常见的数据转换的例子:1. 字符串转整数:将一个表示数字的字符串转换为整数数据类型。
例如,将字符串"123"转换为整数123。
2. 整数转字符串:将一个整数转换为字符串数据类型。
例如,将整数123转换为字符串"123"。
3. 字符串转浮点数:将一个表示浮点数的字符串转换为浮点数数据类型。
例如,将字符串"3.14"转换为浮点数3.14。
4. 浮点数转字符串:将一个浮点数转换为字符串数据类型。
例如,将浮点数3.14转换为字符串"3.14"。
5. 整数转布尔值:将一个整数转换为布尔值数据类型。
通常,非零整数会转换为True,而零整数会转换为False。
6. 布尔值转整数:将一个布尔值转换为整数数据类型。
通常,True会转换为1,False会转换为0。
7. 字符串转日期:将一个表示日期的字符串转换为日期数据类型。
例如,将字符串"2022-01-01"转换为日期数据类型。
8. 日期转字符串:将一个日期转换为字符串数据类型。
例如,将日期数据类型的2022-01-01转换为字符串"2022-01-01"。
9. 列表转字符串:将一个包含多个元素的列表转换为字符串数据类型。
例如,将列表[1, 2, 3]转换为字符串"[1, 2, 3]"。
10. 字符串转列表:将一个包含多个元素的字符串转换为列表数据类型。
例如,将字符串"[1, 2, 3]"转换为列表[1, 2, 3]。
这些都是常见的数据转换的例子,涵盖了不同的数据类型之间的转换。
具体的转换方法会根据编程语言而有所不同。
力扣进制转换题目
力扣进制转换题目以下是力扣上的一道进制转换题目:题目描述:给定一个十进制数 num,将其转换为指定的基数 radix 下的字符串。
示例:输入: num = 100, radix = 2输出: ""输入: num = 5283, radix = 8输出: "10472"输入: num = 101, radix = 16输出: "65"解题思路:进制转换的思路是将给定的十进制数转换为指定基数下的字符串。
具体步骤如下:1. 判断给定的基数是否在 2-36 的范围内,因为超过这个范围的基数会导致无法表示某些数字。
2. 将给定的十进制数转换为指定基数下的字符串。
可以使用除基取余法,即不断将给定的十进制数除以基数并取余数,直到商为 0,然后将余数按照反序拼接成字符串即可。
3. 判断余数是否为 0,如果是则将结果字符串转换为大写字母表示,否则将结果字符串转换为小写字母表示。
4. 返回转换后的字符串作为结果。
代码实现:以下是一个 Python 代码实现,其中 `convertToBaseK` 函数用于将给定的十进制数转换为指定基数下的字符串:```pythondef convertToBaseK(num, k):if k < 2 or k > 36:return "Invalid base"if num == 0:return "0"result = ""while num > 0:digit = num % kif digit < 10:result = str(digit) + resultelse:result = chr(ord('a') + digit - 10) + result num //= kreturn () if k > 10 else ()```。
c语言字母和数字的转换
c语言字母和数字的转换C语言是一种广泛应用于计算机编程的编程语言,它具有强大的功能和灵活的语法规则。
在C语言中,字母和数字之间的转换是一项基本操作,可以用来实现很多有趣和有用的功能。
本文将介绍C语言中字母和数字的转换,并探讨其在实际编程中的应用。
一、字母到数字的转换在C语言中,可以使用ASCII码将字母转换为数字。
ASCII码是一种字符编码标准,其中每个字符都对应一个唯一的数字。
例如,字母A对应的ASCII码是65,字母B对应的ASCII码是66,以此类推。
因此,可以通过将字母的ASCII码减去65来得到字母在字母表中的位置。
例如,字母A的位置是0,字母B的位置是1,以此类推。
在C语言中,可以使用字符类型的变量来表示字母。
例如,可以定义一个变量char letter来表示一个字母。
然后,可以使用赋值运算符将字母赋值给这个变量。
例如,可以使用语句letter = 'A'来将字母A赋值给变量letter。
为了将字母转换为数字,可以使用强制类型转换运算符。
例如,可以使用语句int position = (int)(letter - 'A')来将字母letter转换为数字position。
这里,表达式(letter - 'A')的结果是字母在字母表中的位置,然后使用强制类型转换运算符将其转换为整数类型。
二、数字到字母的转换与字母到数字的转换类似,可以使用ASCII码将数字转换为字母。
例如,数字0对应的ASCII码是48,数字1对应的ASCII码是49,以此类推。
因此,可以通过将数字加上65来得到数字对应的字母。
例如,数字0对应的字母是A,数字1对应的字母是B,以此类推。
在C语言中,可以使用整数类型的变量来表示数字。
例如,可以定义一个变量int number来表示一个数字。
然后,可以使用赋值运算符将数字赋值给这个变量。
例如,可以使用语句number = 0来将数字0赋值给变量number。
numpy中将字母转变为数字的方法
numpy中将字母转变为数字的方法1. 背景介绍在数据分析和机器学习领域,经常需要将字母转变为数字进行处理。
比如在文本分类中,需要将文本转换为数字,才能进行特征提取和分类。
numpy是一种用于科学计算的Python库,提供了丰富的数组操作功能。
在numpy中,可以使用多种方法将字母转变为数字,本文将介绍numpy中常用的四种方法。
2. 方法介绍2.1 ord()函数ord()函数可以将一个字符转换为对应的Unicode码,返回值为整数。
可以通过减去一个数来将其转换为0-25之间的数字。
代码如下:```pythonimport numpy as npchars = ['a', 'b', 'c', 'd']nums = [ord(c) - 97 for c in chars]print(nums)# 输出:[0, 1, 2, 3]```2.2 通过Python字典映射将字母与数字进行映射,可以使用Python的字典。
代码如下:2.3 LabelEncoderLabelEncoder是sklearn中的一个类,可以将标签值统一转换为数字。
可以对一个列表中的多个元素进行转换。
代码如下:```pythonimport numpy as npfrom sklearn.preprocessing import LabelEncoder2.4 pandas Series的astype()方法pandas是Python中一个用于数据分析的库,在其中的Series类型中,有一个astype()方法可以将一列数据的类型进行转换。
代码如下:3. 总结本文介绍了numpy中常用的四种将字母转变为数字的方法,分别为ord()函数、通过Python字典映射、LabelEncoder、pandas Series的astype()方法。
不同的方法适用于不同的场景,可以根据实际需要进行选择。
verilog assign 数组-概述说明以及解释
verilog assign 数组-概述说明以及解释1.引言1.1 概述概述部分的内容可以如下所示:引言部分是对本文主题的简要介绍。
本文主要讨论Verilog中的assign语句以及数组的应用。
Verilog是一种硬件描述语言,被广泛应用于数字电路的设计和仿真。
assign语句是Verilog中用于连接电路中的信号和端口的关键字。
通过assign语句,我们可以将一个信号连接到一个或多个端口,以便在电路中实现特定的功能。
本文将首先介绍Verilog中assign语句的语法和基本用法,包括如何使用assign关键字定义连接。
然后,我们将重点讨论数组在Verilog中的应用。
数组是一种数据结构,可以用于存储多个相关的信号或值。
在Verilog中,数组可以用于存储多个位向量或其他数据类型,并且可以对数组进行索引和操作。
本文的目的是帮助读者理解Verilog assign语句和数组的基本概念,并提供一些实际的例子和应用场景。
通过阅读本文,读者将能够更好地理解如何使用Verilog assign语句来连接电路中的信号和端口,并了解如何使用数组来组织、存储和处理相关的数据。
在接下来的章节中,我们将逐步介绍Verilog assign语句的语法和用法,以及数组在Verilog中的定义和使用。
我们将提供一些具体的例子和实践中常见的应用场景,以帮助读者更好地理解和应用这些概念。
最后,在结论部分,我们将对本文进行总结,并展望Verilog assign 数组的未来发展方向。
通过本文的阅读,读者将能够掌握Verilog assign 语句和数组的基本概念,以及它们在数字电路设计中的实际应用。
希望本文能够对读者在Verilog的学习和实践中起到一定的指导作用。
1.2 文章结构文章结构部分的内容可以包括以下内容:本文分为三个主要部分:引言、正文和结论。
本部分将介绍这三个部分的目的和内容。
引言部分旨在提供对Verilog assign数组的概述,并介绍本篇长文的结构。
FLX-MADI数字音频转换器用户手册说明书
ruUser's ManualTable of Contents1. QUICK REFERENCE (4)2. INTRODUCTION (5)2.1. Purpose (5)2.2. Box Contents (5)2.3. Conventions used in this manual (5)3. POSSIBLE SETUPS (6)3.1. Available AUX cards (6)3.2. Available FLX devices (7)3.3. FlexLink connection (7)4. AUDIO ROUTING (8)4.1. Modes and indication (8)4.2. Selecting the Route Mode (9)4.3. Remarks (9)5. CLOCK SETTINGS (10)5.1. Clock sources and indication (10)5.2. Selecting the Clock Source (10)6. ACCESSING INTERNALS (12)6.1. Opening the device (12)6.2. Inside view (12)6.3. Installing AUX cards (12)7. DIP SETTINGS (13)7.1. Base device config (DIP1..3) (13)7.2. AUX config (DIP4..6) (14)7.3. FlexLink channel mapping (DIP7..9) (15)8. SPECIAL OPERATING MODES (16)8.1. Version Display (16)8.2. LED Test (16)8.3. Interface Self-Test (16)8.4. Firmware update (17)9. SPECIFICATIONS (18)10. ACCESSORIES (18)10.1. Rack mount kits (18)10.2. Additional (redundant) power supply (18)11. APPENDIX (19)11.1. Warranty (19)11.2. Manufacturer contact (19)11.3. FCC Compliance (19)11.4. Recycling (20)FLX-MADI 11.5. Document Revision History (20)11.6. About this document (20)User's Manual1. QUICK REFERENCE➊Power switch and "power good" indicators.LEDs light up blue when power is available on the respective port.➋Mode indicators/selector. Long-press the "Select" button to change the audio routing between the interfaces. Wait four seconds to activate the selected mode.➌Clock indicators/selector. Long-press the "Select" button to change the clock source and sample-rate. Wait four seconds to activate the selected mode.➍MADI SFP port. Pre-installed 1310nm Multimode SFP, accepts any other SFPs Compatible to standard MADI optical (SC plugs) using an LC-to-SC adapter cable ➎MADI Coaxial port➏AUX slot. Accepts optional card for standalone use, or additional MADI channels ➐DIP switches, mostly to control output data format. See 7 . DIP Settings➑USB port (firmware update only, no audio)➒Redundant DC input ports➓FlexLink: optional connection to second flexiverter, or to multiverter.FLX-MADI2. INTRODUCTION2.1.PurposeThe FLX-MADI device is as digital audio converter, providing two built-in MADIinterfaces and a third one (or many other interfaces) with optional AUX cards. Itcan be used in different setups, depending on the user's needs:standalone, to convert between the built-in MADI ports (media converter),standalone, to convert between one of the built-in MADI ports and an additionalAUX card (MADI-to-anything),together with another flexiverter, connected via FlexLink (for up to 192x192channels),together with the multiverter, connected via FlexLink. This provides remotecontrol, channel-wise routing and SRC (Sample Rate Conversion).For a detailed description of possible configurations see 3 . Possible Setups.2.2.Box Contents1 FLX-MADI Converter1 HDMI cable 0.5m / 1.7 ft with locking screws1 Power supply1 Power cord (country specific)This manual2.3.Conventions used in this manualA button on the front is shown like this: Mode or ClockA LED is shown like this:◌ off / ⬤on / ❇ blinkingA section marked with an "information" icon indicatesa useful tip.User's Manual3. POSSIBLE SETUPSThe device can be used in three different setups, shown below:3.1.Available AUX cardsAt the time of writing (2021-11), the following AUX cards are available. More will come, please check www.appsys.ch for updates.FLX-MADIAUX-AVB116x16ch / 32x0ch / 0x32ch MILAN-approved AVBAUX-DAC18ch analog outputs (1xDB25)AUX-DANTE64x64ch DANTE network cardAUX-MADI-COAX64x64ch MADI for coaxial cable (BNC connectors)AUX-MADI-OPTO64x64ch MADI optical, SC connector (Multimode 125um 1310 nm)AUX-MADI-SFP64x64ch MADI for SFP (Small-Factor Pluggable) modulesAUX-WORDCLOCK BNC wordclock I/O3.2.Available FLX devicesAt the time of writing (2021-11), the following FLX devices are available. More willcome, please check www.appsys.ch for updates.3.3.FlexLink connectionThe FlexLink connection is designed to connect Flexiverters with each other, orwith the Multiverter. It provides:192x192 channels bi-directional transmission of 24-bit uncompressed audio(fully transparent to AES3 compatible metadata bits)Super-low link latency of 4 samples (ca. 83µs)Dedicated, high-quality reference clock signal with automatic configurationPower supply for connected devices (to reduce cabling), alternatively serves asredundancy scheme when both devices are powered: in case of power failure,both devices keep working from the remaining power supply.Uses standard HDMI cables (with locking screws), to provide easy fieldreplacement in case of defects.1Estimated availability: Q1/2022User's Manual4. AUDIO ROUTINGThe flexiverter can operate in various routing modes, allowing you to pass audiobetween the available interfaces (MADI SFP, MADI coaxial, AUX and FlexLink) inmany different ways. The LEDs in the "MODE" section indicate the involvedinterfaces.4.1.Modes and indication2All incoming data is also split (output) to FlexLink: MADI SFP is split to Lane 1 (ch1-64), MADI coaxial is split to Lane 2 (ch65-128) and AUX is split to Lane 3 (ch129-192). The split is not indicated on the LEDs for clarity but is always active.FLX-MADIseconds, the selected mode is applied automatically.4.2.Selecting the Route ModeLong-press the Mode button until the LEDs are blinking yellow.Current routing mode is shown by alternately yellow blinking LEDs, indicatingthe interfaces where the signal is passed between.Press the Mode button repeatedly to cycle between available modes, untilthe desired mode is shown.After four seconds without interaction, selection mode is terminated and thecurrent setting comes into effect.4.3.RemarksRouting between the selected interfaces is always bi-directional, meaning thataudio is passed between them both ways. A working bi-directional link shows⬤green for both interfaces. If the LED shows ⚪white, the correspondinginterface does only output data but no input on it has been detected. If the LEDshows ⬤ red, the interface is not connected, or the clock is invalid or missing.Channel-wise routing and splitting (crosspoint switch/matrix) between allchannels is possible when the flexiverter is connected to a multiverter. Routingis then done via the multiverter's web interface or via the command line.User's Manual5. CLOCK SETTINGS5.1.Clock sources and indicationThe flexiverter can be clocked from every interface (acting as clock slave), or canrun on its internal clock (acting as clock master).5.2.Selecting the Clock SourceLong-press the Clock button until the LEDs are blinking yellow.Current clock source/modes is shown by blinking LED(s).Press the Clock button repeatedly to cycle between the available clock sources. Depending on the source, you might need to select the desired sample rate (❇44.1 kHz or ❇48 kHz) and/or the appropriate multipliers (❇x2 /❇x4).After four seconds without interaction, clock setting is automatically terminated and the selected clock source comes into effect.6. ACCESSING INTERNALS6.1.Opening the deviceRequired: Torx T10 screwdriver.Power off the device and detach all cables to avoid short-circuit or damage.Detach the device from the rack-mount kit.Remove the four top screws and the top cover by pulling it upwards:6.2.Inside view➊Screws for AUX cover plate➋AUX card connector6.3.Installing AUX cardsRemove the screws holding the cover plate, and the blank cover plate ➊Insert the AUX card from inside, using the supplied cover plate.Make sure it is correctly fitted to the card connector➋Secure the card using two cover screws ➊The card has been installed correctly if you are able to select an audio routingmode involving AUX (long-press MODE button to enter Route Mode Selection).7. DIP SETTINGSFine-tuning of the flexiverter's built-in interface behavior and of the AUX card canbe achieved via DIP settings on the back side. Changing the DIP settings will come immediately into effect. Default setting: all switches up.7.1.Base device config (DIP1..3)The configuration below affects only the MADI outputs. The input format isautomatically detected, independent of the DIP switch settings.7.2.AUX config (DIP4..6)Many AUX card provide additional settings, which can be adjusted using theseswitches. The actual meaning depends on the type of AUX card installed:For cards not listed, refer to the manual of the respective card, or check for anewer version of this manual.3Applies to outputs only. Input format is always auto-detected, regardless of the switch setting7.3.FlexLink channel mapping (DIP7..9)The FlexLink interface can transmit 192x192 channels, organized in three laneswith 64 channels each. The channel assignment can be adjusted to meet the user's needs, particularly when the device is used in double-FLX configuration (to makesure that all interfaces and channels are mapped to the desired target on the peerFLX device.8. SPECIAL OPERATING MODESSpecial operating modes are accessible by holding down the Mode button while switching on the device. Press Mode again to switch to the next mode:Version Display ⇨ LED Test ⇨ Interface Self-Test ⇨ Normal operation 8.1.Version DisplayThe firmware version "X.Y" and the hardware version "Z" are shown on theLEDs on the front panel:- The number of ⬤pink LEDs lit indicate the major firmware number "X"- The number of ⬤orange LEDs lit indicate the minor firmware number "Y"- The number of ⬤green LEDs lit indicate the hardware version "Z"Example: One (1) ⬤pink LED and three (3) ⬤⬤⬤orange LEDs means"Firmware 1.3", zero green LEDs mean HW version 0.Blinking LEDs mean that the currently installed firmware is a "beta" version. Itis advised to upgrade to an official release version as soon as it is released.Press Mode again to proceed to LED test.8.2.LED TestAll LEDs on the front and on the back should show ⚪ white.Press Mode again to proceed to Interface Self-Test.8.3.Interface Self-TestAll built-in interfaces and the optional AUX card can be tested for correct operation by the user. This is done using the special self-test mode, in which the deviceoutputs a special random test pattern on all channels. This pattern is looped backvia an external cable into the corresponding inputs, where it is checked forconsistency.Self-test mode is indicated with "CLOCK"showing INT/48kHz in ⬤cyan color.The "MODE" LEDs indicate ⬤red (error/no connection) or ⬤green (loopbackdata received ok) for the respective interface.Connect the Output to the Input of the MADI SFP Port using an optical cable.Connect the Output to the Input of the MADI Coaxial Port using an coaxial(BNC) cable with 75 Ohms impedance.If an AUX card is installed, connect all output ports of the AUX card to therespective inputs using a loop-back cable. Note: NOT supported with AUX-ADC, AUX-AES67, AUX-AVB, AUX-DANTE.8.4.Firmware updateThe firmware can be updated from any Windows PC over the rear USB port.▶To update:Download the latest firmware from www.appsys.ch/FLX- MADIUnpack the firmware package FLX-MADI-Firmware_x.y.zipConnect your PC via USB to the flexiverterPower ON the deviceRun the FLX-MADI_Updater.bat file from the firmware package and follow theinstructions on the screen.Power cycle the device to effect the update.Thanks to the special design of the updater, it is virtuallyimpossible to damage ("brick") the device during update. Ifupdating fails or is interrupted, restart the procedure. You canalso can go back to any older firmware version at any time.9. SPECIFICATIONS10. ACCESSORIES10.1.Rack mount kitsFor integration in 19" racks, two kinds of rack mount kits / brackets are available:RM-FLX1: For mounting one FLX device into 1U 19" spaceRM-FLX2: For mounting two FLX devices into 1U 19" space10.2.Additional (redundant) power supplyPWR-FLX: Additional power supply to provide redundancy for single-FLXconfigurationsFlexLink Cable 0.5m. HDMI cable with locking screws11. APPENDIX11.1.WarrantyWe offer a full two (2) year warranty from the date of purchase. Within this period,we repair or exchange your device free of charge in case of any defect*. If youexperience any problems, please contact us first. We try hard to solve your problem as soon as possible, even after the warranty period.* Not covered by the warranty are any damages resulting out of improper use,willful damage, normal wear-out (especially of the connectors) or connection withincompatible devices.11.2.Manufacturer contactAppsys ProAudioRolf Eichenseher Bullingerstr. 63 / BK241 CH-8004 Zürich Switzerland www.appsys.ch**************Phone: +41 43 537 28 51 Mobile: +41 76 747 07 4211.3.FCC ComplianceThis equipment has been tested and found to comply with the limits for a class Bdigital device, pursuant to part 15 of the FCC Rules. These limits are designed toprovide reasonable protection against harmful interference in a residentialinstallation. This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions, may causeharmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does causeharmful interference to radio or television reception, which can be determined byturning the equipment off and on, the user is encouraged to try to correct theinterference by one or more of the following measures:Reorient or relocate the receiving antennaIncrease the separation between the equipment and receiverConnect the equipment into an outlet on a circuit different from that to whichthe receiver is connectedConsult the dealer or an experienced radio/TV technician for helpFLX-MADI This equipment has been verified to comply with the limits for a class B computingdevice, pursuant to FCC Rules. In order to maintain compliance with FCCregulations, shielded cables must be used with this equipment. Operation with non-approved equipment or unshielded cables is likely to result in interference to radioand TV reception. The user is cautioned that changes and modifications made tothe equipment without the approval of manufacturer could void the user’s authorityto operate this equipment.11.4.RecyclingAccording to EU directive 2002/96/EU, electronic devices with acrossed-out dustbin may not be disposed into normal domesticwaste. Please return the products back for environment-friendlyrecycling, we'll refund you the shipping fees.11.5.Document Revision History1: Initial release11.6.About this documentAll trademarks mentioned in this document are property of the respective owners.All information provided here is subject to change without prior notice.Document Revision: 1 · 2021-11-29Copyright © 2021 Appsys ProAudio · Printed in SwitzerlandIDENT 9.00.16146.00User's ManualDeclaration of ConformityThe manufacturer:Appsys ProAudioRolf EichenseherBullingerstr. 63 BK 241CH-8004 ZürichSwitzerlanddeclares under sole responsibility that the products mentioned below:Flexiverter FLX-MADImeet the requirements of the following standards:EN 55024:2010EN 55032:2015 Class BEN 61000-3-2:2006/A1/A2:2009EN 61000-3-3:2009EN 61000-6-3:2007/A1:2011Therefore the product fulfills the demand of the following EC directives:73/23/EWG(Directive related to electrical equipment designed for use within certain voltage limits)89/336/EWG(Directive related to electromagnetic compatibility)The devices are marked accordingly.Zürich, 21.11.2021Rolf Eichenseher (CEO)。
数据结构 数制转换
数据结构数制转换数据结构是计算机科学中的一门基础课程,它研究各种数据结构的逻辑关系和操作方法。
数制转换是数据结构中的一个重要内容,它指的是在不同数制之间进行转换的过程。
本文将详细介绍数制转换的概念、常用的数制及其转换方法。
1:数制转换概述数制转换是将一个数从一种数制表达形式转换为另一种数制表达形式的过程。
常见的数制包括十进制、二进制、八进制和十六进制。
数制转换在计算机科学中应用广泛,常用于数据存储、计算和通信等领域。
2:十进制转换为其他数制2.1 十进制转二进制:将十进制数逐步除以2,并将余数从低位向高位排列,得到对应的二进制数。
2.2 十进制转八进制:将十进制数逐步除以8,并将余数从低位向高位排列,得到对应的八进制数。
2.3 十进制转十六进制:将十进制数逐步除以16,并将余数从低位向高位排列,对于大于9的余数,用A、B、C、D、E、F表示。
3:二进制转换为其他数制3.1 二进制转十进制:将二进制位权从低到高乘以对应位的值,并相加得到对应的十进制数。
3.2 二进制转八进制:将二进制数从右往左每三位一组划分,对每一组进行转换,得到对应的八进制数。
3.3 二进制转十六进制:将二进制数从右往左每四位一组划分,对每一组进行转换,得到对应的十六进制数。
4:八进制转换为其他数制4.1 八进制转十进制:将八进制位权从低到高乘以对应位的值,并相加得到对应的十进制数。
4.2 八进制转二进制:将每一位的八进制数转换为对应的三位二进制数,得到对应的二进制数。
4.3 八进制转十六进制:先将每一位的八进制数转换为对应的三位二进制数,再将二进制数转换为十六进制数。
5:十六进制转换为其他数制5.1 十六进制转十进制:将十六进制位权从低到高乘以对应位的值,并相加得到对应的十进制数。
5.2 十六进制转二进制:将每一位的十六进制数转换为对应的四位二进制数,得到对应的二进制数。
5.3 十六进制转八进制:先将每一位的十六进制数转换为对应的四位二进制数,再将二进制数转换为八进制数。
python基本数据类型题库
python基本数据类型题库本文旨在提供一份Python基本数据类型题库,帮助读者巩固和扩展对Python编程语言中的基本数据类型的理解和应用。
在题库中,你将会遇到各种有关整数、浮点数、字符串、列表、元组和字典的问题。
通过解答这些问题,你将深入了解这些数据类型的特点、操作以及相关的常见问题。
以下是题库的具体内容:1. 整数类型题目1.1 将以下数字转换成Python整数类型:8,-3,0,1000000。
1.2 执行以下运算并输出结果:52 + 23,10 - 5,9 * 7,20 // 6,13 % 4。
1.3 将字符串"12"转换成整数类型,并输出结果。
1.4 使用Python的内置函数,求解以下表达式的绝对值:-12,0,10。
2. 浮点数类型题目2.1 将以下数字转换成Python浮点数类型:3.14,-2.5,0.0,99.99。
2.2 执行以下运算并输出结果:3.5 + 2.1,7.4 - 1.2,2.5 *4.0,10.6 /3.0。
2.3 计算两个浮点数的乘积,并保留两位小数输出结果。
2.4 使用Python的内置函数,对以下表达式进行四舍五入操作:5.3,2.6,8.9。
3. 字符串类型题目3.1 将以下字符转换成Python字符串类型:"Hello","Python","123","True"。
3.2 执行以下操作并输出结果:"Hello " + "World","Python" * 3,len("CaiJi?")。
3.3 将字符串"Python"的第一个字符转换成小写字母,并输出结果。
3.4 利用字符串的切片操作,提取出字符串"A Quick Brown Fox"中的 "Quick"。
泛微e9 流程转数据 赋值表达式
泛微e9 流程转数据赋值表达式英文回答:Data Conversion in Panwei e9: Assignment Expression.Panwei e9 is a powerful business process management (BPM) software that enables organizations to automate and optimize their business processes. One of the key features of Panwei e9 is its ability to convert data between different systems and applications. This is often necessary when integrating Panwei e9 with other systems, such as enterprise resource planning (ERP) systems or customer relationship management (CRM) systems.One of the most common data conversion tasks is assigning values to fields in Panwei e9. This can be done using an assignment expression, which is a formula that specifies the value to be assigned to a field. Assignment expressions can be used to assign values to fields of any type, including text, numeric, and date fields.The syntax of an assignment expression is as follows:field_name = expression.where:`field_name` is the name of the field to which the value will be assigned.`expression` is a formula that specifies the value to be assigned to the field.Expressions can be simple or complex, and they can include a variety of operators, functions, and variables. For example, the following assignment expression assigns the value of the `customer_name` field to the`contact_name` field:contact_name = customer_name.The following assignment expression assigns the valueof the `total_amount` field to the `amount_due` field, and then subtracts the value of the `discount_amount` field from the `amount_due` field:amount_due = total_amount discount_amount.Assignment expressions are a powerful tool for converting data between different systems and applications. They can be used to assign values to fields of any type, and they can include a variety of operators, functions, and variables.中文回答:泛微e9 流程转数据,赋值表达式。
作文转换电子版制作
作文转换电子版制作English Answer:A comprehensive digital transformation plan for written compositions involves leveraging advanced technologies and implementing systematic processes to enhance the quality, accessibility, and shareability of written content. Here's a detailed plan outlining the key steps involved in achieving this transformation:1. Digitization and Centralization:Scan and convert existing written compositions into digital formats (e.g., PDF, Word, Google Docs) usingoptical character recognition (OCR) technology.Establish a centralized digital repository for all written compositions, ensuring easy access and retrieval.2. Metadata Extraction and Indexing:Extract metadata from written compositions, such as author, title, subject, keywords, and creation date.Index the metadata to facilitate efficient search and retrieval based on specific criteria.3. Collaboration and Annotation:Enable real-time collaboration on written compositions using cloud-based editing tools.Allow users to annotate and comment on compositions, fostering feedback and discussion.4. Automated Analysis and Feedback:Utilize natural language processing (NLP) techniques to analyze written compositions for grammar, style, and content quality.Provide automated feedback and suggestions to writers,helping them improve their writing skills.5. Accessibility and Sharing:Ensure compositions are accessible to users with disabilities through features like screen readers and text-to-speech tools.Implement sharing mechanisms, allowing users to share compositions securely with others.6. Integration with Learning Management Systems (LMS):Integrate the digital composition platform with LMS to provide seamless access to written compositions for students and teachers.Facilitate assignment submission, grading, and feedback mechanisms within the LMS.7. Analytics and Reporting:Track usage data and user feedback to monitor the effectiveness of the digital transformation plan.Generate reports to identify areas for improvement and inform decision-making.Chinese Answer:作文电子化制作转化全面计划。
代码实现十位和千位的数字交换函数
以下是一个使用Python编写的函数,它可以将十位和千位数字交换。
假设我们输入一个三位数,我们希望交换十位和千位数字,比如123,我们希望交换后变成321。
这个函数将数字转化为字符串,进行数字的交换,然后返回新的数字。
python复制代码
def swap_digits(num):
num_str = str(num)
# 将数字按千位和十位分割
thousand_digit, ten_digit, unit_digit = int(num_str[0]), int(num_str[1]),
int(num_str[2])
# 创建一个新的数字,其中千位和十位被交换
new_num = (ten_digit * 1000) + (thousand_digit * 10) + unit_digit
return new_num
这个函数的使用方法如下:
python复制代码
print(swap_digits(123)) # 输出:321
注意:这个函数只适用于三位数。
对于其他位数或者负数,你可能需要添加额外的错误检查和处理。
NumberConversion:数转换
Number ConversionCSE2300WObjectivesThis assignment is to design a circuit that convert a4-bit binary number to several represen-tations in different number systems.You will also learn how to use LogicWorks to build and simulate simple digital circuits.More specifically,you will learn the following things.1.Given logic equations,construct a logic circuit with basic gates in LogicWorks.2.Provide input to your circuit using binary switches and display circuit outputs on binaryprobes,and hex and ASCII displays.3.Exhaustively test a circuit to ensure it works as specified.PrerequisitesThis probably is your initial foray into the digital design process.A knowledge of basic gates is necessary and you should also understand number systems.Since you have not learned how to design a digital circuit yet,the logic equations are given for conversions from binary to decimal. Later in this course,you will be able to write and optimize similar equations yourself.You will need LogicWorks software,a web browser,and a PDF reader.We assume you have all these in the lab.BackgroundDecimal,binary,hexadecimal,and octal are some number systems you will use a lot.The decimal number system(base10)is used for dealing with money,measuring,etc.The computer you are using works in binary(base2).But we do not read binary numbers as well as decimal numbers.Therefore,for programmers,octal(base8)or hexadecimal(base16)is commonly used since these systems are easy to convert to/from binary and also easier to read.For example,considering25510,which of‘FF’and‘11111111’would you like to use?Both of them represent the decimal number255.Thefirst is in hexadecimal and the second is in binary.This lab helps you understand how numbers can be represented in one format and then converted to another.Although your digital circuit may work in binary,very often,you need to display values in other systems.It is important to understand how these conversions are performed with hardware.We have discussed the theory behind the number conversions in lectures.The major thing to remember is the meaning of a base or radix for the number system being used.There aremethods that convert numbers from any base to any other,which are helpful in cases like binary to decimal and vice versa.But,in cases involving only binary,octal,and hexadecimal, the conversions become much easier because of the power relationship between their bases.Consider a binary number100110010001.It can be easily converted into an octal by break-ing the bits into groups of three.1001100100014621To perform the hex version you can break the binary bits into groups of four.100110010001991One of the important aspects of number systems(considering integers only)is the use of preceding zeros.For example,a7-bit binary number,1010011does not convert to hexadecimal by taking thefirst(most significant)bits1010,converting to A16,and then converting the remaining3binary bits to316.The correct way is to add a preceding zero to make the number of binary bits a multiple of4.In the previous example,the bits should be put in groups this way:01010011.Converting each group to a hex digit gives you5316.SpecificationsYou will build a circuit that takes a4-bit binary input and displays it in four different number systems:binary,octal,decimal,and hexadecimal.The circuit also displays the decimal number on ASCII displays.Using LogicWorks,you are to build a circuit with the inputs and outputs arranged as shownConnect the inputs to the hexadecimal displays.The4pins on the hexadecimal display correspond to the4bits which make up the hexadecimal digit.The dot on the display indicates the pin corresponding to the least significant bit(LSB).Connect the inputs to the octal displays.Some values represented by a4-bit binary num-ber need two octal digits,so we use two hexadecimal displays.Although we still use hex displays,you want to make sure only valid octal digits are displayed.It is not difficult to figure how to connect inputs to pins.Think about the conversion process from base2to base8and the values you want to see on the displays.Implement the binary-to-decimal conversion.The conversion from binary to decimal isa little bit more complicated.Suppose A,B,C,and D are the four binary input bits.Two digits in the decimal number can then be generated with the following equations.You may ask which of the four bits is the right most bit,i.e.,LSB.Staring at the equations for a moment,you willfigure it out.•10’s digit–1 s=D·C+D·B–2 s=0–4 s=0–8 s=0•1’s digit–1 s=A–2 s=D ·B+D·C·B–4 s=D ·C+C·B–8 s=D·C ·BConnect the inputs to the ASCII displays.Now you know the value of each decimal digit.You need to generate proper ASCII code for ASCII displays.Notice that the ASCII code(see Additional Reference section)for the numbers0-9all begins with the same4bits.So these four bits can be connected to constant0or1.You can use the “GND”and“5V”components in LogicWorks.TestingSince this circuit is designed to convert a4-bit binary number to a different number system, only16possible combinations exist.You should exhaustively try every possible input.A recommendation for systematically testing is to start from‘0’(00002)and count to‘15’(11112). As you input each binary number,make a table as in Table1.Verify that there are no mistakes(either in the circuit or as you copy the screen results to paper).DeliverablesYou will work individually in this lab.You do not need to implement the circuit physically with chips and wires.Once you have tested and debugged you circuit thoroughly in LogicWorks,Table1:ResultsBinary Hex.Oct.Dec.ASCIID C B A L R L R L R0000000100100011....write a report,following the guidelines described in thefirst lab.Make sure your report has a table summarizing the number and type of chips you used,and a table as shown in the testing section.Your report and LogicWorksfiles must be submitted electronically on HuskyCT.You also need to hand in a hard copy of your report to TA by the due date.Additional ReferenceTable2:ASCII Table0123456789A B C D E F 0NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI 1DLE DC1DC2DC3DC4NAK SYN ETB AN EM SUB ESC FS GS RS US 2!”#$%&’()*+,-./ 30123456789:;<=>? 4@A B C D E F G H I J K L M N O 5P Q R S T U V W X Y Z[\]ˆ6‘a b c d e f g h i j k l m n o 7p q r s t u v w x y z{—}˜。
指派问题
0 30 0 32
6 17 17 0 0 0 0 0 0 0 45 45
第四步等价于第2、 行减去 行减去5,同时第1列加上 列加上5得到的结果 第四步等价于第 、3行减去 ,同时第 列加上 得到的结果
指派问题 assignment problem
指派问题
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指派问题
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解指派问题的匈牙利算法 匈牙利法的条件是:问题求最小值、 匈牙利法的条件是:问题求最小值、人数与工作数相等及效率 非负 定理1】如果从分配问题效率矩阵[c 的每一行元素中分别减 【定理 】如果从分配问题效率矩阵 ij]的每一行元素中分别减 或加上)一个常数u 被称为该行的位势), ),从每一列分 去(或加上)一个常数 i(被称为该行的位势),从每一列分 别减去(或加上)一个常数v 称为该列的位势), ),得到一个 别减去(或加上)一个常数 j(称为该列的位势),得到一个 新的效率矩阵[b ,其中b 的最优解等价于[c 新的效率矩阵 ij],其中 ij=cij-ui-vj,则[bij]的最优解等价于 ij] 则 的最优解等价于 的最优解,这里c 均非负. 的最优解,这里 ij、bij均非负. 【证】
1 【解】设 xij = 0
分配第i人做j工作时 不分配第i人做j工作时
指派问题 assignment problem
指派问题
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数学模型为: 数学模型为:
max Z = 85 x11 + 92 x12 + 73 x13 + 90 x14 + 95 x 21 + 87 x 22 + + 78 x 23 + 95 x 24 + 82 x31 + 83 x32 + 79 x33 + 90 x34 + + 86 x 41 + 90 x 42 + 80 x 43 + 88 x 44
signed to unsigned assignment -回复
signed to unsigned assignment -回复题目:将有符号数赋值给无符号数的步骤和影响引言:在计算机科学和编程领域中,有时候我们需要将有符号数(signed)赋值给无符号数(unsigned)。
然而,这样的赋值并非没有风险,因为有符号数的取值范围和无符号数的取值范围是不同的。
本文将一步一步回答将有符号数赋值给无符号数的步骤和可能带来的影响。
第一步:了解有符号数和无符号数的区别有符号数和无符号数是计算机中表示数字的两种方式。
有符号数可以表示正数、负数和零,而无符号数只能表示大于或等于零的数。
有符号数的表示范围是从负的最小值到正的最大值,而无符号数的表示范围是从零到正的最大值。
第二步:确定有符号数和无符号数的表示范围在将有符号数赋值给无符号数之前,我们需要确定两者的表示范围。
以32位整数为例,有符号数的表示范围是从-2^31到2^31-1,而无符号数的表示范围是从0到2^32-1。
第三步:将有符号数赋值给无符号数在将有符号数赋值给无符号数时,编程语言会执行隐式的类型转换。
具体步骤如下:1. 如果有符号数的值大于或等于0,则直接将其赋值给无符号数。
2. 如果有符号数的值小于0,则将其值加上无符号数的表示范围,再赋值给无符号数。
通过这样的赋值操作,有符号数便被转换为无符号数。
第四步:可能的影响和风险将有符号数赋值给无符号数时,可能会导致一些意外的结果和隐藏的风险。
以下是可能的影响和风险:1. 溢出:如果有符号数的值操作超过无符号数的表示范围,将会发生溢出。
溢出可能导致数值变为一种无意义的值,这会对程序的结果和行为产生不可预见的影响。
2. 负数被当作正数:将负数赋值给无符号数时,它们的绝对值将会被当作正数。
这可能导致程序逻辑错误或错误的结果。
3. 比较错误:由于有符号数和无符号数的表示范围不同,对它们进行比较时可能会出现错误。
比如,一个有符号数为负数,而无符号数为正数,它们之间的比较结果将会产生错误。
数据结构C语言实现之数制转换
数据结构C语言实现之数制转换数制转换是计算机科学中的一个重要主题,它涉及将一个数从一种数制表示转换为另一种数制表示。
数制是指用来表示数字的系统,常见的数制包括十进制、二进制、八进制和十六进制。
在计算机中,常用的数制是二进制,因为计算机中所有数据都以二进制形式存储和处理。
但是,人们更习惯于使用十进制数制,因此在计算机科学中,经常需要进行不同数制之间的转换。
数制转换涉及到的几种常见数制是二进制、八进制和十六进制,因此本篇文章将主要介绍如何实现这三种数制之间的相互转换。
一、二进制转换为十进制:二进制数是由0和1组成的数,它与十进制数的转换相对简单。
我们只需要将二进制数从右至左依次乘以2的幂次方,然后将它们相加得到十进制数。
下面是C语言实现二进制转换为十进制的代码:```c#include<stdio.h>#include<math.h>int binaryToDecimal(long long n)int decimal = 0, i = 0, remainder;while (n != 0)remainder = n % 10;n/=10;decimal += remainder * pow(2, i); // pow函数用于计算一个数的幂次方++i;}return decimal;int mailong long n;printf("Enter a binary number: ");scanf("%lld", &n);printf("Decimal number: %d\n", binaryToDecimal(n));return 0;```二、十进制转换为二进制:十进制转换为二进制相对复杂一些,我们需要将十进制数除以2,然后将得到的商再次除以2,依此类推,直到商为0为止。
最后将所有的余数倒序排列,即可得到所求的二进制数。
数据变换的四种方法
数据变换的四种方法1. 数据变换的概述数据变换是数据处理的重要步骤之一,它指的是将原始数据转换为可用于分析和建模的形式。
数据变换有助于提取有用的信息、发现数据中的模式,并为后续的数据分析和挖掘工作做准备。
在数据变换的过程中,我们可以使用多种不同的方法来转换数据。
本文将介绍数据变换的四种常用方法,分别是:标准化、归一化、离散化和正则化。
2. 标准化标准化是一种常用的数据变换方法,它将数据按照一定的规则转换为均值为0,标准差为1的分布。
标准化可以消除数据之间的量纲差异,使得不同特征的数据具有可比性。
标准化可以通过以下公式进行计算:x' = (x - mean) / std其中,x为原始数据,mean为均值,std为标准差。
标准化后的数据x’符合标准正态分布,均值为0,标准差为1。
标准化的步骤如下: 1. 计算原始数据的均值和标准差; 2. 将原始数据减去均值,然后除以标准差。
标准化适用于数据分布近似正态分布的情况,可以有效地降低异常值的影响,提高模型的鲁棒性和稳定性。
3. 归一化归一化是另一种常用的数据变换方法,它将数据映射到一个特定的范围,通常是[0,1]或[-1,1]之间。
归一化可以消除数据之间的取值范围差异,使得不同特征的数据具有可比性。
归一化可以通过以下公式进行计算:x' = (x - min) / (max - min)其中,x为原始数据,min为最小值,max为最大值。
归一化后的数据x’在指定范围内均匀分布。
归一化的步骤如下: 1. 计算原始数据的最小值和最大值; 2. 将原始数据减去最小值,然后除以最大值与最小值之差。
归一化适用于需要将数据映射到一定范围内的情况,可以提高模型的收敛速度,减小特征间的权重差异。
4. 离散化离散化是一种将连续型数据转换为离散型数据的方法,它将连续的数值按照一定的规则划分为若干个区间或类别。
离散化可以将复杂的连续数据简化为离散的表示,方便对数据进行处理和分析。
中文数字正则转数字
中文数字正则转数字【原创实用版】目录1.介绍中文数字正则转数字的背景和需求2.详述正则表达式的概念和应用3.讲解如何使用 Python 实现中文数字正则转数字4.总结中文数字正则转数字的方法和应用场景正文随着数据处理和信息提取的需求日益增长,对文本中数字的识别和转换变得越来越重要。
在处理中文文本时,我们需要将文本中的数字转换为数字,以便进行进一步的分析和处理。
为了实现这一目标,我们可以使用正则表达式来匹配中文数字,然后将其转换为阿拉伯数字。
正则表达式(Regular Expression,简称 regex)是一种用于匹配字符串模式的强大工具。
它可以用来查找特定的文本模式、验证输入的数据格式等。
在计算机科学领域,正则表达式被广泛应用于文本处理、数据提取等场景。
对于中文数字正则转数字的问题,我们可以使用 Python 编程语言来实现。
Python 提供了 re 库,可以方便地处理正则表达式。
下面是一个简单的示例,展示如何使用 Python 实现中文数字正则转数字:```pythonimport redef chinese_num_to_arabic(text):pattern = r"[u4e00-u9fa5]+" # 匹配中文数字result = re.findall(pattern, text) # 查找所有匹配的数字arabic_num = [int(num) for num in result] # 将匹配到的数字转换为阿拉伯数字return arabic_numtext = "这是一个包含中文数字 12345 的文本,还有六千七百八十九。
"result = chinese_num_to_arabic(text)print(result) # 输出:[12345, 6789]```上述示例中,我们定义了一个名为 chinese_num_to_arabic 的函数,它接受一个字符串参数 text。
c++数字的数位变换题目
c++数字的数位变换题目含解答当涉及到C++中的数字的数位变换问题时,可能有多种类型的问题,例如反转数字、计算数字各位之和、检查数字是否是回文数等。
以下是一些示例问题及其解答:1. 反转数字问题:给定一个整数,编写一个函数来反转它。
解答:```cpp#include <iostream>int reverseNumber(int num) {int reversed = 0;while (num != 0) {int digit = num % 10;reversed = reversed * 10 + digit;num /= 10;}return reversed;}int main() {int num;std::cout << "Enter an integer: ";std::cin >> num;int reversedNum = reverseNumber(num);std::cout << "Reversed Number: " << reversedNum << std::endl;return 0;}```2. 计算数字各位之和问题:给定一个整数,编写一个函数来计算其各位数字之和。
解答:```cpp#include <iostream>int sumOfDigits(int num) {int sum = 0;while (num != 0) {sum += num % 10;num /= 10;}return sum;}int main() {int num;std::cout << "Enter an integer: ";std::cin >> num;int digitSum = sumOfDigits(num);std::cout << "Sum of Digits: " << digitSum << std::endl;return 0;}```3. 检查回文数问题:给定一个整数,编写一个函数来判断它是否是回文数。
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数字转换训练
一、数位转换:
训练方法:分别用英语和汉语视译以下数字,反复练习几遍,达到数位转换自动化的程度。
汉英转换:
1千1万3万 1.2万10万6万33万1百万1千万180万7千万1亿10亿13亿60.5亿62万 3.8亿1万亿270万5千万12万5千356亿7千万203.7亿6亿5千万11亿5百万23.4万8.9万亿10万亿
英汉转换:
1 billion 10 million 50 thousand 33 million 1.3 billion 125 thousand
1 trillion 1 hundred million 900 million 800 thousand
3 hundred thousand 123 million 1 billion 2 million 3 thousand
2 billion 468 million 54 million 321 thousand 7.65 billion
二、数字朗读:
训练1. 以下每个数字先用中文朗读,再用英文朗读,然后继续读下一个数字。
3 6 8 21 86 207 576 919 2010 4777 5012 6636 20500 31370 91003 108025 110120 123456 200020 214598 78965
4 818009 901030 919919 1000000 2500000 4834667 555500
5 6002100 8100808 13801020 20112012 39000000 426802000 670001200 987654321 1234567890 2030405060 300500700900 880066004400 9000800070006
训练2.Practice the following figures by using the English sentence patte rn of “…covers an area of …square kilometers with a population of …”.And then interpret them from English into Chinese.
三、数字概念转换:
汉英:三分之一八分之一五又三分之一20/75 一比零三乘以六五的三次方根号二零点六七数十万数亿三倍37号
8成7.5折10个百分点3番2打0.94% 连续三年
19世纪80年代千年大后年半夜十二点一个时辰“十二五”
英汉:two dozens one score one gross six to the power of ten three squared three-nil 1.1-fold 17 percent off quadruple
May 31, 2011 AD 76 6 a.m. 3:12 13:52 first season
minus five absolute value of zero
四、数字单位转换:
汉英转换:
36.2公里123.45亿美元90.2公斤2529万公顷3000.68万吨 4.45亿千瓦
960万平方公里1斤2两10千克34英寸1000立方米350毫升6英尺5000升120英里/小时346米/秒45000万人 2.97万亿美元 3.3万公里1码1100万户180磅7000万人次零下10摄氏度98.6华氏度32品脱100加仑1亩3分地800帕斯卡9.8牛顿32焦耳3欧姆120平米6盎司5毫米
英汉转换:
$79.30 ¥10 million 2 cents 3 quarters 1 nickel five feet four
42 miles 3 p.m. 9 pounds 6 ounces 150 grams 6lb 4oz
a quart (of milk) 2.471 acres 256 kbps 1 nanometer 5 yards
150,000 sq meters 100 hectares 2,098 cubic meters 1,000 yen
37 ℃ 5.2 on the Richter scale 180,000 light-years 25 mph
五、数字变化转换:
请将下面的句子口译成对应的英语或汉语:
1)今年12月份居民消费价格指数同比上涨9.6%,环比上涨1.1%
2)四川是西部地区吸收外资最多的省份,达到8.22亿美元,占西部地区的35.3%。
3)人民币在香港的存款已经超过三千亿。
4)现在同1994年相比,人民币的有效汇率升值57.9%。
5)People’s income today is three times higher than that of a decade ago.
6)This would reduce the deficit by more than $400 billion over the next decade.
7)The year-end foreign exchange reserves of China reached US$1,066.3 billion, an increase of US$ 247.3 billion as compared to the beginning of the year.
8)The overall profitability of UK private corporations in the fourth quarter of 2006 was 15.5%, which was higher than the estimate of 15.2% recorded in the previous quarter.。