《数学专业英语》常用英文表达 PPT
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. Writing skills of mathematical and other scientific articles
. Translating skills of mathematical articles:both translation from Chinese to English and En大g家l好ish to Chinese
Example: 5 6 read as 5 times 6 or 5 multiplied by 6
, Over or is to or divided by
Example: 3 read as 3 over 4, three quarters,
4
4 3 divided by 4
: Proportion
33
Ten million, hundred million, billion···
Expressions of some basic mathematical signs:
1. General signs of operation
+ Plus, positive Example: 2+3 read as two plus three
* Reading, writing and translation of mathematical materials should be brife, simple, exact and easy to be understood
22
Some English expressions of numbers:
Example: c ? 6 c is far greater than minus 6
66
x A x belongs to A
x is an element (or a member) of A
x A x does not belong to A
x is not an element (or a member) of A
Example: 1 : 2 read as the ratio of 1 to 2
0 0
Percent, Per cent
Example: 2 0 0 read as 2 Percent
‰ Permille, per mille
Example: 5 ‰ read as 5 per mille
2. Basic signs of relationships 大家好
Be equal to, equals
Be identical with/to, be equivalent to
Example: c 5 read as c is identical with (to) 5,
c is equivalent to 5
55
Be not equal to
Example: cda0c plus d times a is not equals to 0
AB A is contained in B or A is a subset of B AB A contains B or B is a subset o大f家A好 A I B A cap B or A meet B or A intersection B
A U B A cup B or A join B or A union B
大家好
Integers(Z)
Fractions(F)
Natural numbers(N), Zero, Negatives of Natural Numbers
Notice: Reading of Integers
one, ten, hundred, thousand,
ten thousand, hundred thousand, million.
The set of numbers consists of real numbers and pure imaginary numbers shown as follows
Complex numbers(C)
Pure imaginary numbers(I)
Real numbers(R)
Rational numbers(Q) Irrational numbers(Q´)
MATHEMATICAL ENGLISH
大家好
Mathematical English， School of Appl. Math.
Aim of the Course:
Expected progress in the following aspects:
. Reading skills of the original mathematical articles and books
Be approximately equal to
Example: 3 0 .4 2 9 3 divided by 7 is approximately
7
Equal to zero point four two nine
, Be less than, be greater than
Example: ab,cd a is less than b, c is greater than d
A \ B A minus B or
the difference between A and B
7
6
- Minus, negative
Examplewenku.baidu.com 6-2 read as six minus two
± Plus or minus, Positive or negative
大家好
Example: x 3, read as x equals plus or minus 3
Multiplied by, times
,
大家好
Be less than or equal to, be greater than or equal to
Example:3x8x is greater than or equal to minus 3
and less than or equal to 8
= , ? Be far less than, be far greater than
. Translating skills of mathematical articles:both translation from Chinese to English and En大g家l好ish to Chinese
Example: 5 6 read as 5 times 6 or 5 multiplied by 6
, Over or is to or divided by
Example: 3 read as 3 over 4, three quarters,
4
4 3 divided by 4
: Proportion
33
Ten million, hundred million, billion···
Expressions of some basic mathematical signs:
1. General signs of operation
+ Plus, positive Example: 2+3 read as two plus three
* Reading, writing and translation of mathematical materials should be brife, simple, exact and easy to be understood
22
Some English expressions of numbers:
Example: c ? 6 c is far greater than minus 6
66
x A x belongs to A
x is an element (or a member) of A
x A x does not belong to A
x is not an element (or a member) of A
Example: 1 : 2 read as the ratio of 1 to 2
0 0
Percent, Per cent
Example: 2 0 0 read as 2 Percent
‰ Permille, per mille
Example: 5 ‰ read as 5 per mille
2. Basic signs of relationships 大家好
Be equal to, equals
Be identical with/to, be equivalent to
Example: c 5 read as c is identical with (to) 5,
c is equivalent to 5
55
Be not equal to
Example: cda0c plus d times a is not equals to 0
AB A is contained in B or A is a subset of B AB A contains B or B is a subset o大f家A好 A I B A cap B or A meet B or A intersection B
A U B A cup B or A join B or A union B
大家好
Integers(Z)
Fractions(F)
Natural numbers(N), Zero, Negatives of Natural Numbers
Notice: Reading of Integers
one, ten, hundred, thousand,
ten thousand, hundred thousand, million.
The set of numbers consists of real numbers and pure imaginary numbers shown as follows
Complex numbers(C)
Pure imaginary numbers(I)
Real numbers(R)
Rational numbers(Q) Irrational numbers(Q´)
MATHEMATICAL ENGLISH
大家好
Mathematical English， School of Appl. Math.
Aim of the Course:
Expected progress in the following aspects:
. Reading skills of the original mathematical articles and books
Be approximately equal to
Example: 3 0 .4 2 9 3 divided by 7 is approximately
7
Equal to zero point four two nine
, Be less than, be greater than
Example: ab,cd a is less than b, c is greater than d
A \ B A minus B or
the difference between A and B
7
6
- Minus, negative
Examplewenku.baidu.com 6-2 read as six minus two
± Plus or minus, Positive or negative
大家好
Example: x 3, read as x equals plus or minus 3
Multiplied by, times
,
大家好
Be less than or equal to, be greater than or equal to
Example:3x8x is greater than or equal to minus 3
and less than or equal to 8
= , ? Be far less than, be far greater than