![]() |
|
GRE/GMAT数学符号和常用的数学表达方式
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
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 rightangle ┻ 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
4.x multiplied by y; 5. divided by y; 6.A and B are factors of C;
8. reciprocal of x 9. x times as many z as y; z=x y 10.a squared; 11. a cubed; a3 12. between a and b (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
|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||