SSAT考試數(shù)學(xué)常用詞匯總結(jié).

???? 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 指數(shù)??? 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 四邊形??? quadrilateral 平行四邊形??? parallelogram 梯形??? trapezoid ( x , y )??? coordinates of a point in a plane ( x , y , z )??? coordinates of a point in space ∴??? therore ＄??? 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 圓周??? Circumference 面積??? area 直徑??? diameter 半徑??? radius 周邊;周長??? perimeter 次方??? power 根(數(shù))??? root 長??? length 寬??? width 高??? height 基數(shù);底邊??? base