GRE_GMAT数学符号.docVIP

GRE/GMAT数学符号 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 st? 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