- Minus, negative
Example: 6-2 read as six minus two
± Plus or minus, Positive or negative
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Example: x 3, read as x equals plus or minus 3
Multiplied by, times
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
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
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
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Be not equal to
Example: cda0c plus d times a is not equals to 0
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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.
. 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
,
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
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
33
Ten million, hundred million, billion···
ቤተ መጻሕፍቲ ባይዱ
Expressions of some basic mathematical signs:
1. General signs of operation
+ Plus, positive Example: 2+3 read as two plus three
Example: c ? 6 c is far greater than minus 6
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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
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´)
A \ B A minus B or
the difference between A and B
7
6
* Reading, writing and translation of mathematical materials should be brife, simple, exact and easy to be understood
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Some English expressions of numbers:
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