GRE_GMAT数学符号
文章作者 100test 发表时间 2007:02:25 20:03:10
来源 100Test.Com百考试题网
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
根号 square root
0.888888… the repeating decimal
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
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.
the product of x and y. xy
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 1/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. one third 1/3
16. a of x (a fraction of x). ax
75% of x (a percent of x) 0.75x