卡西欧函数计算器Fx-82SX使用说明书英文版
2款卡西欧计算器使用方法
一、 进入直线回归计算功能
1、按
2、按顺序依次按
清除内存原有数据；
二、输入需要回归计算的数据，
每组数据按下述格式重复进行，直到全部数据输完 ：
<X i 数据> <Y i 数据> 例题：
数据输入方法： 0 0
0.2 0.003
0.5 0.012
1 0.027
2 0.059
输完数据后调出a 、b 、r 值的方法：
1、调出
a
2、调出
b
3、调出r
由此可以得出: a= -0.002, b=0.030, r=0.998
二、 进入直线回归计算功能
1、按顺序依次按
清除内存原有数据；
2、按A+BX ）进入直线回归模式，将看到以下数据输入屏幕：
二、输入需要回归计算的数据， 例题：
数据输入方法：
输入数值后，按下
键。
可用方向键选择要输入的单元格。
X 、Y 数值均输完后，按下键，切换到STAT 计算屏幕。
三、输完数据后调出A 、B
、r 值的方法：
1、调出A
2、调出B
3、调出r
由此可以得出: a= -0.002, b=0.030, r=0.998。
卡西欧fx-82ES PLUS fx-85ES PLUS fx-95ES PLUS用户说明书
电池 • 将电池放在儿童不易接触到的地方。 • 仅使用本手册中为本计算器指定的电池型号。
操作注意事项
• 即使计算器运行正常，也应至少每三年(LR44(GPA76))、两年(R03(UM-4)) 或一年(LR03(AM4))更换一次电池。 废旧电池可能会漏液，从而对计算器造成损害并使其产生故障。请勿将废 旧电池遗留在计算器中。电池完全没有电之后，请勿再试图使用计算器 (fx-85ES PLUS)。
Disp 显示屏目前显示多语句表达式的中间结果。
重要事项：对于需要长时间执行的其他各类计算，当其在内部执行计算的同 时，显示屏可能只会显示上述指示符(没有任何数值)。
使用菜单
使用菜单可执行计算器的某些操作。例如，按N或w将显示应用功能的 菜单。 使用以下操作可在菜单之间导航。 • 在菜单屏幕中，按其左侧对应数字的数字键选择菜单项。
或商标。
Ck-2
取下保护壳
使用计算器之前，将保护壳向下滑动并取 下，然后将保护壳固定到计算器的背面， 如下图所示。
接通或者断开电源
按O接通计算器电源。 按1A(OFF)断开计算器电源。
自动关闭电源 如果不执行任何操作大约10分钟，本计算器会自动关闭。如果发生这种情 况，按O键可重新打开计算器。
调整显示对比度
计算器正在等待输入变量名称，以便调用此变量的数值。按 t后，将出现此指示符。
STAT 7 8
计算器处于STAT模式。 缺省角度单位为度数。 缺省角度单位为弧度。
9
缺省角度单位为梯度。
FIX
固定位数的小数位数有效。
SCI 固定位数的有效位数有效。
Math “普通显示”被选定为显示格式。
$`
可提供并重放计算历史记录的存储数据，或者在现有屏幕之 上或之下还有更多的数据。
CASIOfx-82ES计算器隐藏功能（矩阵、向量、解方程、复数运算等）
大家说看不明白一刚辛苦手打大家分享按s hift、9、3、=、=按shift、+、1、，、0、=按分数线到底大概7~8次按=、AC按左、1 、按次方、=、AC按上、AC 按左2次按 DEL 删除1。
得到r=1，等等按分数线上下都输入1按= 再按8次Ans继续跟着按22次sin 按AC按shi f t、9、1、=、AC按shif t、9、2、=、AC按次方更号次方更号满点按快了会死机如死机则重来大概5组直到后面出现一串英文按DEL删除所有次方和更号继续按D EL 开始删除字母删到r 前面按）按=、AC按shif t、9、2、=、AC按右删除）输入1 ：按2次= 记住2次按MO DE、2按ON按MO DE 按几次右可以快捷调亮度然后修复计算机按sh ift、MODE、3按shi ft、MODE、8、1按shift、MODE下、4、1搞定哈哈哈哈哈哈E NG就是i如输入8+6i／9+47i 后一定要按shift、2、4那是负数指令不按你死定了注：本次升级目标：从fx-82ES（B版）升级到fx-991ES在所有操作之前，请先检查计算器屏幕左上角是否有“M”字样。
如果有，请按0+shift+RCL(STO)+ M+。
如果没有，请继续操作。
所有隐藏模式调出前请先进入异常模式：注：【】代表注释( )代表第二功能键首先打开计算器电源（ON）1. shift2. + (Pol)3. 14. shift5. "）" ( , )6. 07. )【前7步最后显示为"Pol(0,1)"】8. =9. 狂按分数线，直到按到顶不动为止【似乎是7到8个】10. 按= （显示Synta x ERROR 不要管它），AC，左11. 112. 幂【在方向键下面，就是X上面有个小白框的键】13. =14. AC15. 向上键16. AC17. 向左键三次18. DEL【删掉1,出现“r=1,φ=0”】19. 【光标在最前面】按一下分数线20. 分数线上面输入1，下面也输入1【其实不需要一定要是1，只要分子分母一样就可以了】21. =22. AC此时,已是异常模式,所有隐藏模式的前提进入异常模式后就可以实行升级了（异常模式的界面和初始模式一模一样，如何鉴定？——随便输入一个运算，如“1+2”按= ，如果没有显示结果，那你就成功进入异常模式啦，当然要想看到结果的话就按“S<=>D”。
卡西欧fx-82MS计算器使用指南说明书
S M 2 8 -x fO I S A CMASTERING THE CALCULATOR USING THE CASIO fx-82MSLearning and Teaching Support Unit (LTSU)The Learning CentreGuide bookWritten byLinda GalliganPublished byUniversity of Southern QueenslandToowoomba Queensland 4350Australia.au©University of Southern Queensland, 2006.1.Copyrighted materials reproduced herein are used under the provisions of the Copyright Act 1968 as amended, or as a result of application to the copyright owner.No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, mechanical, photocopying, recording or otherwise without prior permission.Produced by the Distance and e-Learning Centre using FrameMaker5.5.6 on a Pentium workstation.TABLE OFCONTENTSPAGE Introduction1A word about starting out21.Addition and subtraction42.Multiplication and division83.Brackets104.Powers115.Fractions17ing the x–1 key197.Scientific notation208.Factorial x!22ing memory2310.Statistics2511.Linear regression3112.Trigonometric functions3413.Exponential and logarithmic functions3614.Degrees, minutes, seconds38 Review calculator exercises41 Calculator solutions42 Your notes44Mastering the Calculator using the Casio fx-82MS1IntroductionThis is one in a series of booklets prepared to assist students who are learning to use a calculator. They have been prepared by staff in The Learning Centre from the Learning and Teaching Support Unit (LTSU) at USQ. The series comprises:Mastering the calculator•Using the Casio fx-100s (also suitable for Casio fx-570)•Using the Casio fx-100AU•Using the Casio fx-82LB•Using the Casio fx-82TL•Using the Casio fx-82MS•Using the Sharp EL-531LH•Using the Sharp EL-556L•Using the Sharp EL-531RHThe instructions in this booklet only explain some of the keys available on your calculator necessary for basic work in data manipulation. If you require more assistance please contact The Learning Centre. If you would like information about other support services available from The Learning Centre, please contactThe Learning Centre (TLC)Learning and Teaching Support Unit (LTSU), S-BlockThe University of Southern QueenslandTelephone: 07 4631 2751Email:***********.auFax: 07 4631 1801Home page: .au/ltsuNote the booklets are also available online at the above address (follow the prompts).2Mastering the Calculator using the Casio fx -82MSA word about starting out•Make sure you are in the correct mode selection and that all previous data is cleared.•Example: To perform arithmetic operations press •To clear all values press •To clear memory pressThe screen displaysPress to clear memory•If your calculator has FIX or SCI on the display pressthree timesappears on the screenpress 3, then 2 so you are in Normal mode.•If your calculator has RAD or GRAD on the display press two timesappears on the screenpress 1 so you are in Degree mode.Mcl ModeAllMastering the Calculator using the Casio fx-82MS3•There is also a mode which gives you a preference for displaying the decimal point as a dot or comma as 34.26 or 34, 26.PressPressPress Press4Mastering the Calculator using the Casio fx -82MS1.Addition and subtraction1.1 To add numbers(it is shown on the photograph of the calculator here).ExampleTo add 7 and 3, typeThe display should read 10ExampleI want to find the total amount I earned in the past four weeks. If I earned $471, $575, $471 and $528, the key strokes would beThe display should read 2045.Mastering the Calculator using the Casio fx-82MS5and continue.ExampleExampleIf I want to add 471 and 575 but I typedThe display should read 1 046.‘Try practising cancelling with the1.3 The keys are used when you to delete other dataExampleIf you typed:471 + 546PressThe display should read 1 047.Practice using this key when replacing digits, operation keys (+ – ×÷), or more than one digit (use the DEL key).You can also use the insert key to insert anything you omitted. ExampleIf you typed 471 + 56the display should read 1047.1.4 To subtract numbersFind the key (it is shown on the photograph of the calculator following). ExampleTo subtract 35 from 257, typeThe display should read 222Example348 – 24 – 19The keystrokes areThe display should read 305.Sometimes you may have a sum like this:-7 + 4You can use theThe key strokes areThe display should read -3.You could also use the keystrokesIn this case the calculator recognises the – as a negative (not recommended to do it this way).2.Multiplication and division 2.1 To multiply numbersFind the key (it is shown on the photograph of your calculator here).ExampleTo multiply 7 and 3, typeThe display should read 21To find 753 × 492, typeThe display should read 370 4762.2 To divide numbersExampleTo divide 35 by 7, type The display should read 5To divide 7 905 by 85, typeThe display should read 93To divide 56 by 23947 typeThe display should read 0.002338497If it reads 2.3385×10-03 or something similar, then your calculator is in SCI (Scientific mode).See page 2 to change to NORM (normal mode).2.3 Combining multiplication and divisionExampleIf the question isthen it is really 27 ÷ 7 ÷ 4.Try it.The display should read 0.9642857142774×-----------3.BracketsFind the set of bracket keys on your calculator.The fx-100AU allows you to use many sets of brackets.ExampleDo the calculation 471 – (93 + 11 + 2) on the calculator. (Make sure your calculation is in ordinary comp. mode –)The keystrokes required are The display should read 365.Sometimes in calculations you will see other grouping symbols, for example, { } (called braces), [ ] (called square brackets).Try these examples:Exercise 1(a)25 + (7 + 2 – 4)(b)18 (3 + 7) [a multiplication sign is understood 18 × (3 + 7)] but you don’t need to press the× key(c)4 + 5 [2 (3 + 7)][to use two sets of brackets just press the same button](d)Answers:30; 180; 104; 14.Powers4.1 Squaring and higher powers62 means 6 × 6. You can use the square key to do this calculation. (It is shown on the photograph of your calculator here.)532+()----------------Pressthe display should read 36.Or you can use the power key on your calculator.Find the ^ key on your calculator (similar to the key on your computer keyboard).ExampleTo square 6,that is, find 62, typeThe display should read 36To find 273 the required key strokes areand the display should read 19683.If you have learnt your multiplication tables you will already know the squares of the whole numbers from 1 to 12 and thus be able to complete much of the following table.__________________________________________________________________________Exercise 2Use your calculator to find the squares of the whole numbers from 13 to 25 and any other squares you are unsure of.__________________________________________________________________________12 = 1112 =212 =22 = 4122 =222 =32 = 9132 =232 = 52942 =142 =242 = 57652 =152 =252 = 62562 =162 =72 =172 =82 =182 =92 =192 =102202Exercise 3You can use this key for other powers as well. Try these examples(a)74(b)810(c)(0.4)6 (you do not have to type the brackets in)(d)(–7)6 (you need to type the brackets in)(e)50.4(f)5–4__________________________________________________________________________Answers:(a)2401(b)1073741824(c)4.096 × 10–3 or 0.004096 (you move the decimal 3 places to the left)(d)(e)1.903653939(f)0.0016 [Just press–4 is the same as so you could press__________________________________________________________________________4.2 Square rootFinding the square root of a number ‘undoes’ or ‘neutralises’ the squaring of the number and vice versa. The symbol for square root is(This is called the radical sign)The square root of 36 is written as Now because 62 = 36, .Find the square root key on your calculator and type154-----36366=The display will read 6.What do you think is? =__________________________________________________________________________You should have said 9 because 92 = 81(Check your calculator)__________________________________________________________________________What do you think will be? You should have said ‘you can’t find the square root of a negative’ since you can’t find a number that squares to give a positive. Your calculator will say Math ERROR.Exercise 4Try these by looking at the table of squares you completed on the previous page and then check your answers on your calculator__________________________________________________________________________The answers are 4, 12, 10, 21, 7, 13, 11, 19.Let’s now check that taking the square root neutralises squaring.Try this on your calculator.Find the square root of 3 squared that is, The key strokes required are The display should read 3Because squaring and taking square roots are inverse operations , the order of the operatons can be reversed and the number is unaffected.So the square, of the square root of 3, should also equal 3Try it on your calculator. The key strokes required are__________________________________________________________________________(a) =(e)=(b) =(f) =(c) =(g) =(d) =(h) =818149–164914416910012144136132Exercise 5Complete the following without using the calculator(a)=(b)=(c)=(d)=10(e)=625(f)=144(g)=,because 82=(h)=,because =121(i)=,because =Check your answers on the calculator.__________________________________________________________________________4.3 Other rootson your calculator. To get to thiskey you must press shift first.727210222264121225Look at the examples below.Examples(a)9½and the display should read 3.orand the display should read 3.(b)and the display should read 2.(c)16¼and the display should read 2.Note:•Root key is a function at the back of the power key, so you will need to activate it with theSHIFT key•See the key . The x stands for the root you want to take so it is typed first.•From the examples above you may have seen that . is called a fractionalindex.813--x 813--83=813--5.FractionsHow do you add and ? Normally you would have to find a common denominator of252.So:Or you can use your calculator to add fractions. Find the key On the key the ‘a ’ represents the whole part of a mixednumber and the ‘’ represents the fraction part of a mixed number.When the number you are typing is a proper or improper fraction the ‘a ’ is zero and there is no need to type a value for it.112-----463-----112-----463-----+21252--------16252--------+37252--------==a b c--fraction keya bc --bc--The key storkes required for the calculation are:and the display will show 37252 which is read as ExampleFindUsing the calculator the key strokes are:and the display will show 87172 which is read asNote if you now press. So this key turns a mixed fractionIf you press thei.e. 8.9861111112-----463-----+d37252--------819--6372-----+d d87172-----64772--------ing the x –1 keyThis is a very useful key in more complex calculations. Find the key on your calculator.ExampleLook at this simple example is the same as You can input this in your calculator by pressingThe answer should be 0.571428571. This would be the same as if you just typed 4 ÷ 7Take another example Type:The answer should be 0.05194805147--417--×483+()7×-------------------------7.Scientific notationSometimes you may have numbers expressed in scientific notation, i.e., 7.24 × 103 instead of 7240. When a number is multiplied by 103right. You can do this on the calculator by using the key.PressIf you want to multiply two numbers e.g. 8.34 × 10–2 × 4.28 × 105. Pressand the display will read 35695.2If you presswhich means 3.56952 × 104. Pressing the mode three times gives youthe displayThe puts the calculator in scientific notation. The calculator then asks SCI 0~9? Thisgives the option of how many digits are displayed. The gives you 10 digits. Notice asmall sci appears in the screen.If you press ×1004whichmeans3.570 × 104. This rounds the number to 4 digits.Practise using the and keys on your calculator8.Factorial x!Look at your calculator and find the key with the symbol x! on it. You will come across this symbol when doing the Binomial Distribution. This is called the factorial key.3! means 3 × 2 × 1 and 5! = 5 × 4 × 3 × 2 × 13! = 65! = 120How many ways would you guess that we could arrange ten people?That is, how large would you estimate 10! to be? Use your calculator to find 10!You should get 3 628 800.10! = 10 × 9 × 8 × ... × 3 × 2 × 1(Thank goodness this can be done on the calculator.)Factorial ruleThe number of ways of arranging n items in order is known as ‘factorial n’ which is symbolised as n! where:n! = n× (n – 1) × (n – 2) × ... × 3 × 2 × 1ing memoryTo calculate the following it may be useful to use the memory key for each term:Example:To make sure memory is clear, first pressorand make sure you are in normal calculation mode [may need to press mode 1].An M appears in the display when you put something in memory.916–()216---------------------2316–()216------------------------1716–()216------------------------++key to activate M–)To do the calculation above, press the following keys- this puts the first term (3.0625) into the memory then press- this adds the second term (3.0625) into memory then press- this adds the third term 0.0625 to memory.To find the answer press The answer should be 6.1875.Example 2calculate the following:firstpress the following keys:your answer should be 11.39917438(There are other memory keys in your calculator – the A to F keys, accessed by using SHIFTSTO and RCL – try them yourselves.)1817---------1717---------1217---------++10.Statistics10.1 Mean and standard deviation – single dataThe formula for the mean is The formulas for the sample standard deviation are(sample)(population)Your calculator will calculate the mean and standard deviation for you (the populationstandard deviation or the sample standard deviation – in data calculations you will usually use the sample standard deviation.)On the Casio fx -82MS , σ and s are found in s-V AR. The positions of keys needed are shown on the diagram below.x Σxn-----=σn σn -1input data keyTo find the mean and standard deviation,firstly you must access the statistics mode of the calculator by using the keysfollowed bySD will appear in the centre of the screen.Note that once you are in the statistics mode, the keys shown within the blue lines are active.There are 3 such keys on the Casio fx -82MS. Make sure you can locate them. Before starting any computations always clear the statistic’s memories using Scl. PressI will use the data set A (–5, 2, 3, 4, 11) to demonstrate the use of the calculator. Note that I have shown the use of thekey where necessary.Step 1: Input the e theThe display should read n = 5. (This means 5 observations have been input).Step 3: Display the mean and standard deviation.Pressthe display shows three alternativesPressx σn = 5.099019514Pressx σn –1 = 5.700877126ExampleUse your calculator to find the mean, standard deviation and variance for data set B: –18, 1, 3, 9, 20.(the variance is the square of the standard deviation)__________________________________________________________________________After you are in the statistics mode and cleared the statistics memories, the keystrokes required are:The mean is 3, the standard deviation is 13.87 and the variance is 192.5. button accesses a number of extra statistical functions.If you have made an error with inputting your data you can correct it by using the up and down key.For example, you inputreads x 3 = 60, then pressIn the example below, the progressive calculations are shown simply to give you someunderstanding of the underlying processes – you should do one or two examples in detail and then check them by calculator.=Σx 2 =815=Σx = 15=n= 510.2 Mean and standard deviation of frequency distributionGiven below is the frequency table for the weights (kg) of a random sample of 30 first year university female students. Find the standard deviation, the variance and the mean.The calculations needed to obtain the standard deviation without statistical keys for these data are:Σx 2 = 602 × 2 + 612 × 14 + 622 × 8 + 632 + 642 × 5 = 114 495Σx = 60 × 2 + 61 × 14 + 62 × 8 + 63 + 64 × 5 = 1 853s = = Thus:s= 1.2 kg and s 2 = 1.4 kg 2= Note: In calculations like the above you should carry as many decimals as possible until thefinal result. The number of decimals to be retained at the end depends on the accuracy of the data values – one rule of thumb is to have one more decimal than in the original data.Notice how the frequencies were used in the above calculation.The calculator usage now has a small modification because we have been given the frequencies for the variable values. (There is no need to input each single observation.)Graduate’s weight(kg)FrequencyCumulative frequency6022611416628246312564530Σx i 2Σx i ()2n ⁄–n 1–--------------------------------------114 495 1 853()230⁄–29-------------------------------------------------------114 495114 453.6333–29--------------------------------------------------------- 1.4264==Σx n -----185330-----------61.8 kg==The keystrokes required are:The display should read n = 30.Thus, as expecteds = 1.2 kg, s 2 = 1.4 kg 2 and = 61.8 kg Exercise 6Find the mean, standard deviation and variance of (a)The annual rainfall data for the years 1971 – 1990Year 1971197219731974197519761977197819791980Rain (mm) 1 3409901 1201 7362601 1001 3791 1251 4301 446Year 1981198219831984198519861987198819891990Rain (mm)1 4591 6781 3459781 0021 1101 5461 6721 4671 123x(b)The sample of snail foot lengthsAnswers:(a)Rainfall statisticsmean:µ = 1 265.3 mm standard deviation:= 336.4 mm variance:σ2 = 113141.7 mm2 (b)Snail statistics mean:standard deviation:s = 0.70 cm variance:s2 = 0.49 cm2Snail foot length (cm)2.2 4.13.54.5 3.2 3.7 3.0 2.63.4 1.6 3.1 3.3 3.8 3.14.7 3.72.5 4.33.4 3.6 2.9 3.3 3.9 3.13.3 3.1 3.74.4 3.2 4.1 1.9 3.44.7 3.8 3.2 2.6 3.9 3.0 4.2 3.5σn-111.Linear regressionTo access the linear regression mode you presskey once followed bythen a small REG appearsExampleSuppose we had a sample of 10 of the same type of banana. Their lengths and skin thicknesses were measured. Below is a summary of the results.STEPS1.(1 = Linear Regression; there are 5 other types)2.Think of the sample of bananas as having two variables:– let x be the variable length of banana – let y be the variable thickness of bananaBanana 12345678910Length (mm)16.215.816.514.916.916.815.615.615.715.4Thickness (mm)1.11.21.11.00.91.21.11.20.90.8accesses the keys with ⎡ ⎤ in blueFor each banana you have to put in both numbers.To put in the first set of numbers, press the following keys:is used for the 2nd variableContinue in this mannerAfter you have input all the numbers.The display should read n = 10To find the linear regression equation in the formy = a + b xPressPress∴There is not a high correlation between the thickness of bananas and the length of bananas tested.The calculator will also give you other statistics about this sample. Use to get the mean thickness (1.055mm) or the standard deviation (0.64mm).x σy σn –1:12.Trigonometric functionsThe keys involved are:Important : Make sure that your calculator is in the correct mode. For example, if your calculator has R or G on the display and you wish to work in degrees, press mode twice and then select 1 for degrees. Your screen should now display D.Example 1In the right-angled triangle below, the length of the side opposite the 20° angle needs to be calculated.To find the length of the side labelled xcm, useThe keystrokes on the calculator are:Example 2In the right-angled triangle below, the length of the hypotenuse needs to be calculated.To find the length of the side labelled x cm, use:The keystrokes on the calculator are:The display should read 20.466631, so the length of the hypotenuse is about 20.5 cm.Example 3Given the lengths of two of the sides in the right-angled triangle below, find the value of the angle θin degrees:To find the value of θ, you need to use the cos –1 key. The calculator keystrokes are:Note: You must first get the value of the division by using the brackets.Your display should read 60°. If it does not, check that you are in degree mode.13.Exponential and logarithmic functionsThere are two log keys on your calculator, with their associated exponential keys. The latter are accessed by first using the shift key:The ‘log’ key uses base 10 and the ‘ln’ key uses base e (natural logarithm).Example 1Solve equation Taking logs of both sides;To find the value of a , the keystrokes are:The display should read 4.3219281.So, . Confirm this by using theExample 2Given , find the value of y The key is above the log key. Hence the keystrokes are:The display should read 38.370725Example 3 (harder)Given , find the value of xTo find log x , the calculator keystrokes are:2a 20=4.32220≈log y 1.584=log y 1.584= y ⇒101.584=10x log x 6 1.5=The display should read 0.5187675.Since this is the value of log x , you still need to find x where Without removing the answer of 0.5187675 on your display, press:Your display should now read 3.3019272Note: You could use the ‘ln’ key instead of the ‘log’ key – the answer would still be the same. Try it!14.Degrees, minutes, secondsThe key involved isThis key can be used for problems involving degrees, minutes and seconds or hours, minutes and seconds.0.518767510x=Example 1Suppose that you have a trigonometric problem where the angle involved is given in degreesand minutes. e.g. Find x where ’The keystrokes involved are:The display should show 1.728343, so x is approximately 1.73Example 2If you wish to convert an angle in degrees to its equivalent in degrees, minutes and seconds:e.g. 34.88°, the keystrokes are:The display should read 34°52°48.Example 3To find the sum of 5 hours 52 minutes 30 seconds and 7 hours 45 minutes 49 seconds:The keystrokes are:The display should read 13.638611 (hours).x 4sin 25° 36×=Review calculator exercises1.Perform the following calculations(i)(5 + 4) × 3(ii)12.5 – 8 ÷ 0.5(iii)(iv)(v)(vi)(vii)(viii)(ix)(x)(xi)2.The following data is on growth (in $m) in an economy over a 8 year period:2.56.2-2.10.048.27.42.1-1.7Calculate (i) Σx(ii) Σx 2(iii) (Σx )2Explain in words what each of these mean.368–×4--------------------12.816.5 3.8–-----------------------70.4117+×47+()2×-------------------------------2.434--------145.617.225⁄–345.617.22–5⁄25327×1.0230--------------------+4.1333 3.000–() 2.0150.136626------------------0.200026------------------+±10090–()290---------------------------5060–()260------------------------2030–()230------------------------++Calculator solutions1.(i)(5 + 4) ×3= 27Make sure your calculation is in comp mode.(ii)12.5 – 8 ÷ 0.5= -3.5(iii)= 2.5Either (3 × 6 – 8) ÷ 4 = or 3 × 6 – 8 = ÷ 4 =(iv)= 1.007874Either 12.8 ÷ (16.5 – 3.8) = or 16.5 – 3.8 = x –1× 12.8 =(v)= 0.9Either ... ÷ ((4 + 7) × 2) = or ... ÷ (4 + 7) ÷ 2 =(vi)= 3.2Either 2.4 ÷ (3 ÷ 4) =, or 2.4 ÷ 3 a b/c 4 = (vii)= 9.296..Either 145.6 – 17.2x 2 ÷ 5 = √ =, or √ (145.6 – 17.2x 2 ÷ 5) =(viii)= 1.41..Either 345.6 – 17.2x 2 = √ ÷ 5 = or (345.6 – 17.2x 2) √ ÷ 5 =(ix)= 39.498525 + 3 × 27 ÷ 1.02 ÷ √ 30 =(x)= 1.3325 or 0.9341368–×4--------------------12.816.5 3.8–-----------------------70.417+×47+()2×----------------------------2.434--------145.617.225⁄–345.617.22–5⁄25327×1.0230--------------------+4.1333 3.000–() 2.0150.136626------------------0.200026------------------+±Calculator keys:0.1366 x 2 ÷ 6 + .2 x 2 ÷ 6 = √ = x 2.015 ==(xi)= 6.1111Calculator keys:(100 – 90) x 2 ÷ 90 + (50 – 60) x 2 ÷ 60 + (20 – 30) x 2 ÷ 30 =2.The following data is on growth (in $m) in an economy over a 8 year period:2.56.2-2.10.048.27.42.1-1.7Calculate (i) Σx(ii) Σx 2(iii) (Σx )2Explain in words what each of these mean.To do this on the calculator, you must be in SD mode. Enter the data:mode 1 2.5 M+ 6.2 M+ (–) 2.1 M+ .04 M+ 8.2 M+ 7.4 M+ 2.1 M+ (–) 1.7 M+(i)22.64Press the key that says ΣxThis gives the total growth over the last 8 years(ii)178.4016Press the key that says Σx 2of the squares of the growth in each year(iii)512.5696Press Σx and x 2. This gives the square of the sum of the growth.10090–()290---------------------------5060–()260------------------------2030–()230------------------------++Your notes。
卡西欧计算器fx-82ES、fx-82ES_Plus系列列方程的方法(键盘操作)
卡西欧计算器fx-82ES、fx-82ES Plus系列列方程的方法（键盘操作）方法一：软升级至fx-991ES（仅适用于fx-82ES）1.shift2.(Pol)3.14.shift5.(,)6.17.)8.=9.狂按分数线，直到按到顶不动为止（似乎是6个）10.按= （显示Syntax ERROR 不要管它），AC，左11.112.幂（在方向键下面，就是X上面有个小白框的键）13.=14.AC15.向上键16.AC17.向左键三次18.DEL19.根号Ans20.=21、十个Ans22、两个log■□23.右右右，按“（”按到乱码涨上来，大概10个24.=右，左左按“sin（”按到乱码涨上来，大概7个25.=右，左，按7个“（”不停重复25步......直到屏幕上的乱点消失，光标不见26.AC27.shift+9+128.升级成功，请修复后用线性模式按mode出现8个，可以自由转换，EQN也可以用了，最大缺陷是在数学模式下计算就死机。
注：EQN模式就是方程模式。
方法二：升级至牛顿解方程功能（仅适用于fx-82ES）1.打出r（正常模式下，具体方法看上面）2.r前一分之一3.M+4.出现错误，别管他按AC5.5个分数线6.=7.ac8.←9.+10.111.幂（会变为线性格式）12.=13.ac14.1÷215.shift+9+1 + = + =alpha+abs是=shift+abs是解方程方法三、利用START模式（适用于fx-82ES、fx-82ES Plus系列）很多人说fx-82ES PLUS不能解方程，其实并非如此，它可以解一部分方程，但过程有些麻烦，不如95和991的EQN好用。
82ES PLUS可以解下列方程1、一元一次方程2、一元二次方程3、二元一次方程组4、少数分式方程5、比例式首先按MODE，按2(STAT)。
一元一次方程(说例统计表中，第一行X和Y都是0(只需要在X列按一下0和=就行了)，第二行X列输入a的值(这里是8)，Y列打出c-b的值(这里打21-5或打16都行)，按AC，按SHIFT，按1，按5(Reg)，按2(B)，按等号，显示的值就是方程的解了。
卡西欧fx-82TL计算器说明书
300 ѿ 500 500
҂
100
҃
160
(%)
300 + 500 A v
160.00
• 範例 6：若溫度由 40℃升高至 46℃﹐問溫度升高的百分 比為多少？
46
Ҁ 40
40
҂
100
҃
15
(%)
46 , 40 A v
15.
科學函數計算
• 使用 COMP 模式進行科學函數計算• π ҃ 3.14159265359
換一次電池-而 fx-82TL 型計算器則須每 2 年更換一次電 池-
電量耗盡的電池會泄漏液體﹐使計算器造成損壞及出 現故障-因此切勿將電量耗盡的電池留放在計算器內• 本機所附帶的電池在出廠後的搬運﹑保管過程中會有輕微 的電源消耗-因此﹐其壽命可能會比正常的電池壽命要 短• 如果電池的電力過低﹐存儲器的內容將會發生錯誤或完全 消失-因此﹐對於所有重要的數據﹐請務必另作記錄• 避免在溫度極端的環境中使用及保管計算器-
• 每當您在輸入數值或算式後按 = 鍵﹐計算結果即會自動 存入答案存儲器中-按 g 鍵即可顯示答案存儲器中的內 容-
• 答案存儲器可儲存 12 位數的尾數及 2 位數的指數• 若進行上述鍵操作後所得出的計算結果為一錯誤
（ERROR）時﹐答案存儲器中的值則不會更新-
基本計算
• 進行基本計算時使用 COMP 模式• 範例 1：3҂(5҂10-9)
低溫會使顯示畫面的反應變得緩慢遲鈍或完全無法顯 示﹐亦會縮短電池的使用壽命-此外﹐應避免計算器受到 太陽的直接照射﹐亦不要將其放置在諸如窗邊﹐發熱器的 附近等任何會造成高溫的地方-高溫會使本機機殼褪色或 變形及會損壞內部電路• 避免在高濕度及多灰塵的地方使用及存放本機-
卡西欧fx-82ES使用技巧
卡西欧fx-82ES使用技巧一、shift+7+on，不多说了，很多人都知道二、C MPLX （复数计算），MAT （矩阵），VCT （向量）！没想到吧，俺们的计算器还能算复数。
说到这里，先要讲怎么进入异常状态！这可是好多种变态功能使用的必须状态！进入异常状态：（依次按下列键，不能多一下或少一下，期间不管计算器怎么显示错误都无视）on, shift+加号（Pol）, 1, shift+右括号（逗号）,0, =, AC, 6下分数线,=,AC,左,1, xF（x平方右边那个）,=, AC,上,AC, 3下左,DEL（此时显示r=1,fai o=0，惊讶了吧）,分数线，在分数线上下都输入1,=异常状态进入成功！然后继续凹：8下Ans,然后不断按sin直到显示错误，AC, shift+9, 1, =, AC, shift+9, 2, =, AC （前面几步也叫2次清空），5下根号,6下xF（此时岀现乱码，可以看见乘以10）,15下DEL（正好到r前面，小心点按哦，按过头就要重来了。
）,右括号，=,AC, shift+9, 2, =, AC, 2下右，DEL（正好把那个右括号删了）, 1, alpha+x A3（是个双引号）,2下等于,mode看到什么了！2就是复数计算，4不明，5也不明，6就是矩阵，8就是向量，平时看不见吧〜1、CMPLX :按完2之后屏幕突然变亮，然后按on,再用shift+mode调节屏幕亮度（可以看得清楚点。
）为了保证能正常使用，shift+mode, 3, shift+mode, 8, 1, shift+mode,下,4, 1。
OK 啦---- 现在ENG 就是i ！！！不过计算结果如果带i的话不会显示岀来比如答案是-1+i，显示就是-11，按shift+2再按4就能显示岀来了，shift+2还有其他几个功能，自己研究吧〜〜2、MAT:按完6之后按一下AC,然后同样调节亮度。
shift+4，慢慢玩吧〜〜3、VCT :按完8之后按一下AC,然后同样调节亮度。
fx-82ES说明书
Ck-4
使用計算器之前
■ 取下保護殼
使用計算器之前﹐ 將保護殼向下滑動並取下之﹐然後將保護殼 固定到計算器的背面﹐如下圖所示Ą
■ 接通或者斷開電源
• 按下 O 接通計算器電源Ą • 按下 1A(OFF) 斷開計算器電源Ą
■ 調整顯示對比度
1N(SETUP)c5(]CONT') 這會顯示對比度調整屏幕Ą使用 d 與 e 調整顯示對比度Ą 看到您所想要的設定之后﹐按下 A Ą
計算器的廢物處理
• 切勿焚燒計算器Ą若此﹐ 會使計算器某些元件突然激射﹐ 產生起火或者人身傷害的風險Ą
Ck-3
操作注意事項
• 首次使用計算器之前﹐務必先按下 O 鍵Ą • 即使計算器運行正常﹐也請至少每三年 （LR44(GPA76)） 或者 每兩年 （R03(UM-4)） 或者每年 （LR03(AM4)） 更換一次電池Ą 電量耗盡的電池可能會發生電池液洩漏﹐ 造成計算器損壞或 者功能不正常Ą切勿將電量耗盡的電池留在計算器內Ą • 計算器隨附的電池﹐ 在裝運與存放期間可能會出現輕微的放 電Ą因此﹐ 它可能比正常預計的電池壽命要短﹐ 需要提前更 換Ą • 電力不足可能會使存儲器內容損壞或者永遠丟失Ą應始終保 存所有重要數据的書面記錄Ą • 應避免在易於受到極高或者極低溫度的地區使用或者存放計 算器Ą 很低的溫度可能引起顯示反應緩慢﹑ 顯示完全出現故障﹑ 並 縮短電池壽命Ą此外﹐ 應避免計算器受到太陽光直射﹐ 將之 放置於靠近窗戶﹐ 靠近電熱器或者任何暴露於高溫之處Ą受 熱會使計算器機殼褪色或變形﹐並損壞內部電路Ą • 應避免在易於受到大量濕氣與灰塵影響的地方使用與存放計 算器Ą 應小心﹐ 切勿將計算器放置在可能被潑到水﹐ 或是暴露於高 濕度或者高灰塵的環境中Ą這種情況會損壞內部電路Ą • 切勿使計算器跌落或者以其它方式使其受到強力衝擊Ą • 切勿扭曲或者彎曲計算器Ą 請不要將計算器放入您的褲袋或者其它緊身服內﹐因為這 樣﹐可能會使計算器發生扭曲或者彎曲Ą • 切勿嘗試拆開計算器Ą • 切勿用原子筆或者其它尖銳物體按壓計算器的按鍵Ą • 使用柔軟的乾布拭淨計算器的外部Ą 假如計算器很髒﹐請用沾有弱性水溶液與溫和的中性家用清 潔劑的布塊拭淨之Ą在擦拭計算器之前﹐應先擰去過多的水 分Ą切勿使用稀釋劑﹑苯或者其它揮發性溶液來清潔計算 器Ą這樣會擦掉印刷標記並會損壞計算器外殼Ą
科学计算器说明书
35.
fx-82SX PLUS/220 PLUS：
(续) n
35.
注意：变量M用于独立存储器。
k 清除所有存储器的内容 即使您按A 、更改计算模式或关闭计算器的电源，独立存储器和 变量内容仍将保留。如果需要清除所有存储器的内容，请执行以 下步骤。 fx-82MS/85MS/300MS/350MS：p!,(CLR)1(Mcl)= fx-82SX PLUS/220 PLUS：pr1(Mcl)=
• 配备的电池在运输和存放期间可能会产生轻微放电。因此，更换时 间可能会比正常电池寿命要早。
• 请勿对本产品使用镍氢*或任何其它使用镍作为材料的电池。电池和 产品规格不兼容可能会导致电池寿命缩短和使产品发生故障。
• 请避免在超出温度极限、湿度过高和灰尘过多的区域使用和存放计 算器。
• 切勿过度撞击、挤压或弯曲计算器。 • 请勿尝试拆卸计算器。 • 请使用柔软的干布清洁计算器的外部。 • 无论何时丢弃计算器或电池，请确保遵循您所在地区的法律和法规
k 重放 (fx-82SX PLUS无) 当计算结果位于显示屏上时，您可以按d或e来编辑先前计算所 使用的表达式。
4 × 3 + 2.5 = 14.5
4 * 3 + 2.5 =
4 × 3 － 7.1 = 4.9 (续) dYYYY- 7.1 =
14.5 4.9
k 答案存储器 (Ans)
计算所得的上一计算结果存储在Ans (答案) 存储器中。在每次显示新 计算结果时都会更新Ans存储器内容。
2625.
如果将300克添加到原称重为500克的测试样品，重量增加了
百分之几？(160%)
300+500!=(%)
160.
数值40增加到46后变化了百分之几？(15%)
卡西欧fx-82TL计算器说明书
k 小數位數﹑有效位數﹑RND
• 範例 1：200Ö7҂14҃400 200 \ 7 - 14 =
400.00
（指定 3 位小數）
qqq13
400.00000 Fix
（計算會繼續以 10 位數顯示）
200 \ 7 = - 14 =
使用所指定的小數位數進行相同的計算200 \ 7 =
（內部捨人）
• NORM 1 採用 NORM 1 時﹐對大於 10 位的整數及小數位數多
於 2 位的小數﹐指數記法將被自動採用-
• NORM 2 採用 NORM 2 時﹐對大於 10 位的整數及小數位數多
於 9 位的小數﹐指數記法將被自動採用• 本使用說明書中的所有範例均以 NORM 1 形式表示計算
結果-
k 答案存儲器
k 角度單位變換 • 請按 A v 鍵在顯示屏上調出以下菜單°C
DRG
123
• 按 1﹐2﹐或 3 鍵選擇顯示數值所對應的角度單位• 範例：將 4.25 弧度變換為度-
q q 1 →“R”
4.25 A v 2 (R) =
4 . 25r
243.5070629
k 常用及自然對數／反對數
• 範例 1：log 1.23
C
AB
k 將分數形式變換為小數形式
• 範例：
1 2
↔ 0.5 (分數 ↔ 小數)
1C2=
2.75 2 3 4.00
11 4.00
1 2.00
C
0.500
C
1 2.00
百分比計算
• 使用 COMP 模式進行百分比計算• 範例 1：計算 1500 的 12%-
1500 - 12 A v
180.
• 範例 2：求 880 的百分之幾為 660-
CASIO FX-82MS 说明书
含分数及小数值的计算结果总是为小数.
k FIX, SCI, RND
要改变小数位数、有效位数或指数显示格式的设定时，请 按 F 键数次直到下示设置画面出现为止.
(
)
0.5
q ..... 2(Rad) WRAx\3T=
光标时输入的字符将会被插入到光标目前的位置. 按 A K 键或 = 键可将光标从插入光标返回至普通光标.
5-R9+7T=
安全注意事项
在使用本计算器前， 务请详细阅读下述安全注意事项.务请将 本用户说明书存放在易於取阅的地方以便日后随时查用.
等号 = 键前的所有 T 键操作均可省略 .
k 分数计算
u分数பைடு நூலகம்算
当分数值的位数总和(整数 + 分子 + 分母 + 分号)超过 10 位时，本计算器即会自动以小数的格式显示该数值 . 2 范例 1： 3 1 5
A
A B 100
k 独立存储器
数值可直接输入存储器，可与存储器中的数值相加，亦可从 存储器减去数值.独立存储器对於计算累积总和很方便. 独立存储器与变量 M 所使用的存储区相同. 若要清除独立存储器(M)中的数值，键入 0 A j 3 (M ) 即可 . 范例： 23 53 9 6 2
A B B
1r
32 47 90
23 + 9 A j 3 (M ) 53 , 6 | 45 - 2 A {
取下和装上计算器保护壳
在开始之前 ..... 1 如图所示握住保护壳并将机体从保护壳抽出 . 结束后 ..... 2 如图所示握住保护壳并将机体从保护壳抽出 . 机体上键盘的一端必须先推入保护壳 切勿将显示屏的一 . 端先推入保护壳 .
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FX-82SOLARⅡ 使用說明書说明书
fx-82SOLARⅡ使用說明書繁體中文108.04版卡西歐全球教育網站國高中數學例題手冊請至https:///zh-tw/support/qsg/多語言說明書請至/manual/calc目錄開始 (1)前言-關於本說明書 (1)使用注意事項 (1)計算機模式之設定與顯示 (2)指數顯示格式 (3)基本計算 (3)基本計算範例 (3)運算順序和層級 (4)【FX-82SOLAR Ⅱ之運算順序/層級表】 (4)常數計算 (5)記憶計算 (6)分數計算 (8)百分比計算 (9)科學函數計算 (11)六十進位函數 (11)三角/反三角函數 (12)常用函數、自然對數、指數函數 (13)平方根、立方根、平方、倒數 (14)階乘、排列與組合鍵 (14)關於FIX、SCI、NORM、RND、RAN#、ENG (15)座標轉換 (16)統計計算(SD模式) (17)統計模式的使用 (17)統計計算的資料刪除與修改 (18)其他計算機操作問題 (20)開始前言-關於本說明書本說明書係台灣卡西歐團隊，專為我國教育體制內的教師與學生，重新編排的電子版本說明書。
考量到108課綱施行，計算機正式可於數學課堂上配合教學使用，而原紙本說明手冊之印刷字體不適合長時間閱讀，本團隊亦修改原本翻譯不周之處，期待新版說明書能帶來新的教育價值。
使用注意事項●使用計算機之前，確定按下 鍵，重設為初始狀態。
●您的計算機由精密的組件所組成，切勿試圖將計算機拆開。
●避免摔落您的計算機，否則其會受到強烈碰撞造成損壞。
●切勿將計算機存放或放置在高溫、潮濕或有大量灰塵的區域。
暴露在低溫下時，計算機可能需要更多時間才能顯示結果，而且可能無法操作。
計算機一回到正常溫度即可繼續正常操作。
●當螢幕變成空白，其按鍵在計算期間無法操作。
操作鍵盤時，務必看著螢幕以確定所有按鍵操作的執行都正確。
●某些計算可能需要一些時間才能顯示結果。
計算過程中畫面為空白顯示。
●避免使用稀釋劑或甲苯等易揮發液體來清潔計算機。
CASIO fx-82ES PLUS 统计功能使用方法
CASIO fx-82ES\fx-350ES PLUS 统计功能使用方法一、设置频数输入操作：1.shift、mode （进入setup菜单，显示1-8个选项）2.圆盘键向下箭头↓一次，选3:STAT（进入stat设置，屏幕显示Frequency?1:on 2:off）3.选1:on （打开频数栏）二、统计功能使用：1.on（清空屏幕功能）2.mode，选1:COMP（清空原有数据，每次做新题输入新数据需要清空）3.mode，选2:STAT（进入统计功能，屏幕显示1-8个选项）4.选1:1-V AR（进入数据输入界面，屏幕最左边的1、2、3表示我们正在输入的数据是第几个数据；左边X栏输入变量值，右边FREQ输入变量值对应的频数）5.先在左边X栏输入变量值，每键入一个数据后，按等号=输入（如：50 = 60 = 70= 80 = 90=，此时FREQ对应的频数都自动为1）6.然后按圆盘键向右箭头一次，光标进入右侧FREQ栏，准备输入变量值对应的频数，此时光标应显示在频数栏最后一个位置，按圆盘键上箭头若干次，将输入位置移至第一个数据右侧，我们从第一个变量值开始输入对应频数。
（如果题目中没有频数数据，则FREQ 不需要输入，保留默认为1即可）。
频数的输入方法与变量值是相同的，仍是键入一个数据后，按等号=输入（如：5 = 6= 7 = 8 = 9 =）7.数据输入完成后，按橘黄色的AC键（清空屏幕）8.shift、1 （数字键1上面印着STAT，进入统计函数选择屏幕，有1-5个选项）9.选4:V AR（进入统计函数选择界面，有1-4个选项）10.选2:x（此时屏幕左上角显示x），按等号=，可得数据的平均值11.shift、1 （数据键1上面印着STAT，进入统计函数选择屏幕，有1-5个选项）12.选4:V AR（进入统计函数选择界面，有1-4个选项）13.选3:xσ（此时屏幕左上角显示xσ），按等号=，可得数据的标准差14.完成计算后，按AC（清空屏幕）15.on（清空屏幕功能）16.mode，选1:COMP（进入一般计算功能，同时清空原有数据）。
CASIO fx-82ES 83 85 300 350ES 用户说明书
/edu/RCA502139-001V01Chfx-82ES fx-83ES fx-85ES fx-300ES fx-350ES User's Guide用戶說明書REPLAY按鍵功能第二功能有關本說明書•圖樣MATH 顯示出使用數學格式的範例，而圖樣LINE 表示的是線性的格式。
有關輸入輸出格式的詳細內容，請見「指定輸入 / 輸出的格式」章節。
•按鍵上的圖樣表示該鍵輸入值或是它所執行的功能。
範例：1,2,+,-,!,A 等。
•按下1或是S 鍵，接著按下第二鍵，將會執行第二鍵的第二功能。
該鍵的第二功能標示在該鍵上方。
•以下顯示出第二功能鍵的不同顏色的文字標記。
假如按鍵圖樣它代表的意義是的文字是黃色按下1鍵和本鍵就可以使用本應用鍵的功能。
紅色按下S 鍵和本鍵就可以輸入可用的變數、常數和符號。
•以下顯示出本說明書中如何表示第二功能操作的範例。
範例：1s (sin –1)1=括弧內顯示加上（1s ）鍵之後真正執行的功能。
請注意本說明並非您實際鍵盤操作的一部分。
•以下顯示出本說明書如何示範按鍵操作以便選定螢幕上選單項目的範例。
範例：1(Setup )顯示出由之前的數字鍵操作（1）所選定的選單項目。
請注意本說明並非您實際鍵盤操作的一部分。
•游標鍵是由四個箭頭鍵來標示，表示其方向，如以下圖示。
本說明書中，游標鍵操作是由f 、c 、d 、e來表示。
•本說明書和另外的附錄中的顯示和說明（例如：按鍵圖樣），僅供說明使用，和它們實際所代表的項目可能會有些許的不同。
•本說明書的內容可能會有所更動，不再另行通知。
•在任何情況下，卡西歐計算機株式會社不因任何人在購買本產品及所屬項目，所引起的特殊、附帶的，或結果性的損害，而有連帶責任或任何牽連。
除此之外，卡西歐計算機株式會社對於因任何一方由於使用本產品及其所屬項目而引起的任何求償不負有任何賠償責任。
■ 使用另外的附錄每當您在本說明書中看到附錄符號時，它代表您應該參閱另外的附錄。
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• Example 1: (53ѿ6)ѿ(23Ҁ8)ѿ(56҂2)ѿ(99Ö4)҃210.75
(53ѿ6)
53 + 6 = Y
M
59.
(23ȕ8)
23 , 8 |
M
15.
(56҂2)
56 - 2 |
M 112.
(99Ȗ4)
99 \ 4 |
M 24.75
(Memory recall)
Z
M 210.75
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NQPOR
CASIO ELECTRONICS CO., LTD. Unit 6, 1000 North Circular Road, London NW2 7JD, U.K.
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Calculations using degrees Calculations using radians
F4
DEG
F5
RAD
Calculations using grads
F6
GRA
Number of decimal place specification
F7
FIX
Number of significant digit specification
• Example 1: 23ѿ4.5Ҁ53 23 + 4.5 , 53 =
–25.5
• Example 2: 56҂(Ҁ12)Ö(Ҁ2.5) 56 -12 E \ 2.5 E =
268.8
• Example 3: 2Ö3҂(1҂1020) 2 \ 3 -1 e 20 = 6.66666666719
• Example 1: 2.3ѿ3, then 2.3ѿ6
(2.3ѿ3)
2.3 + + 3 =
K 5.3
(2.3ѿ6)
6=
K 8.3
• Example 2: 12҂2.3, then 12҂(ȕ9)
(12҂2.3)
12 - - 2.3 =
(12҂(ȕ9))
9E=
• Example 3: 17ѿ17ѿ17ѿ17҃68
F8
SCI
Cancels FIX and SCI settings
F9 NORM
* Display indicators show current mode setting. Absence of display indicator indicates COMP Mode.
—3—
Note!
• A mode guide is located above the display screen. • DEG, RAD, and GRA modes can be used in combination
• Keep this manual on hand for future reference.
Modes Application
Key
Mode
Operation Name*
Standard deviation calculations Normal calculations
Fl F0
SD COMP
• The display will go blank and keys will not operate during calculations. When you are operating the keyboard, be sure to watch the display to make sure that all your key operations are being performed correctly.
• The contents of this manual are subject to change without notice.
• No part of this manual may be reproduced in any form without the express written consent of the manufacturer.
fx-82SX/
fx-250HC
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• In no event will the manufacturer and its suppliers be liable to you or any other person for any damages, expenses, lost profits, lost savings, or any other damages arising out of malfunction, repairs, or battery replacement. The user should prepare physical records of data to protect against such data loss.
with the COMP and SD modes. • F9does not exit SD mode. • F0exits SD mode. • F0does not clear SCI or FIX specifications. • Always press t before entering DEG, RAD, and GRA
• Never leave dead batteries in the battery compartment. They can leak and damage the unit.
• Avoid using volatile liquids such as thinner or benzine to clean the unit. Wipe it with a soft cloth, or with a cloth that has been dipped in a solution of water and a neutral detergent and wring out.
(17ѿ17)
17 + + =
(17ѿ17ѿ17)
=
(17ѿ17ѿ17ѿ17)
=
• Example 4: 1.74҃8.3521
(1.72)
1.7 - - =
(1.73)
=
(1.74)
= —6—
K 27.6 K –108.
K 34. K 51. K 68.
K 2.89 K 4.913 K 8.3521
• Example 4: 7҂8Ҁ4҂5=36
7-8,4-5=
36.
• Example 5:
6 4҂5
=0.3
4 -5 \ 6AN =
0.3
• Example 6: 2҂[7ѿ6҂(5ѿ4)]҃122
2-O7+6-
O 5+ 4PP =
122.
• You can skip all P operations before the = key.
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—5—
Constant Calculations
• Press +, ,, -,or \ twice after inputting a number to make that number a constant.
• “K” is on the display while a constant is being used. • Use the COMP mode for constant calculations.
—1—
Handling Precautions
• Your calculator is made up of precision components. Never try to take it apart.
• Avoid dropping your calculator and otherwise subjecting it to strong impact.
• Do not store the calculator or leave it in areas exposed to high temperature or humidity, or large amounts of dust. When exposed to low temperature, the calculator may require more time to display results and may even fail to operate. Correct operation will resume once the calculator is brought back to normal temperature.