SSAT数学考试不认识符号怎么办？别担心，小站教育为你整理了以下数学符号，供大家学习。
± plus or minus
× times or mutiply
÷ divide
= equals is equal to
≠ does not equal is not equal to
< is less than
> is greater than
≦ is less than or equal to
≧ is greater than or equal to
<> is not equal to is less than or greater than
: is to as in proportions, a : b as c : d
- - - between numerais or letters, shows omission of some numerals or letters at the end of a series or esquence shows "and so no"
√ positive square root
n的次方根 nth root
! factorial
指数 exponent, use a as a factor b times
ab subscript, for descriptive discrimination
% percent
| | absolute value
~ similar is similar to
ㄥ angle as in ㄥA or ㄥABC
mㄥ measure of angle
直角 right angle; is perpendicular to
⊙ circle
弧形 arc
△ triangle
正三角 equilateral triangle
等腰三角 isosceles triangle
直角三角 right triangle
□ square
四边形 quadrilateral
平行四边形 parallelogram
梯形 trapezoid
( x , y ) coordinates of a point in a plane
( x , y , z ) coordinates of a point in space
∴ therefore
$ dollar sign
￠ cent sign
( ) parentheses, shows order of operations
[ ] brackets, shows order of operations
{ } braces, shows order of operations; also shows members of a set, when empty shows empty set
圆周 Circumference
面积 area
直径 diameter
半径 radius
周边 周长 perimeter
次方 power
根(数) root
长 length
宽 width
高 height
基数 底边 base
