新
主要符号
+ plus positive - minus negative
× multiplied by times
÷ divided by = equals
? approximately equals
? not equal to
< less than
> greater than
≤ equal to or less than
≥ equal to or greater than o
( ) round brackets parentheses
[ ] square brackets
{ } braces
∈ is a member of the se
t ? is a subset of
? similar to
? congruent to
* denotes an operation
∴ therefore
∵ because
∶ ratio sign, divided by, is to
∷
equals, as(proportion)
square root of 3
cube root of
∥ parallel to
⊥ perpendicular to, at right angles with
∠ angle
∟ right angle
? degree
′ minute
″ second
⊙ circle A?B arc AB
e the base of natural logarithms,approx.2.71828
x! factorial x, x(x-1)(x-2)---1 lognx log x to the base n
π pi
lnx log x to the base e(natural logarithm)
lgx log x to the base 10(common logarithm)
|x|
the absolute value of x
以上就是为大家整理的“新GRE数学词汇手册”，希望通过上述内容的学习，大家能够更好地备考