【SSAT资料】数学考试常见符号词汇汇总

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SSAT数学考试不认识符号怎么办？别担心，易伯华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