美国高中入学考试SSAT数学考试常用词汇汇总如下

美国高中入学考试SSAT数学考试常用词汇汇总如下：±plus or minus
×;·t imes or mutiply
÷divide
- ; / divide, such as a/b
= equals, is equal to
≠does not equal, is not equal to
> 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
absubscript, for descriptive discrimination
% percent
| | absolute value
~ similar, is similar to
ㄥangle, as in ㄥA or ㄥABC
mㄥmeasure 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。