SSAT数学考试常用词汇汇总

± plus or minus
× ;˙ times or mutiply
÷ divide
－ ; / divide, such as a/b
　 　
= 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