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GRE/GMAT数学符号和常用的数学表达方式
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广告招租,e-mail:yesize@hotmail.com

广告招租,e-mail:yesize@hotmail.com

数学试题中常用的数学符号总结如下:

SYMBOL MEANING

=is equal to

≠ is not equal to

≈ is approximately equal to

> is greater than

≥ is greater than or equal to

< is less than

≤ is less than or equal to

square root

0.8 the repeating decimal 0.888…

r s’t” r degrees s minutes t seconds

∠angle

rightangle

┻ is perpendicular

│x│ absolute value of x

∥ is parallel to

△ triangle

~ is similar to

≌ is congruent to

△x delta x

AB arc AB

π pi(3.1415…)

1.is equal to; is the same as
=
  the result is; yields; gives


2.the sum of x and y; the total of x and y;
x added to y; x increased by y; x+y
x more then y; x greater than y


3.x minus y; x less y;
the difference of x and y; x take away y;
  from x subtract y’ x decreased by y; x-y
  x diminished by y; y is subtracted from x;
  y less than x (note the reversal)

4.x multiplied by y;
xy
the product of x and y;

5. divided by y;
 the quotient of x and y; x y,
y divided into x (note the reversal)

6.A and B are factors of C;
A and B are divisors of C;
C is divisible by A and by B; A B=C
C is a multiple of A and of B;
A divides C and B divides C;


7. the ratio of a to b a:b,

8. reciprocal of x

9. x times as many z as y; z=x y

10.a squared;
a to the second power a2

11. a cubed; a3
a to the third power

12. between a and b (a,b)
between a and b, inclusive [a,b]

13. off 低于,从……中扣除

14. account for 占

15. third

16. of x (a fraction of x); x,0.75x
 75% of x (a percent of x)




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