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新GRE数学考试符号简介
日期:2013-11-12 17:12

(单词翻译:单击)

+ plus ;positive
- minus ;negative
× multiplied by ;times
÷ divided by
= equals
≈ approximately equals
≠ not equal to
< less than
> greater than
≤ equal to or less than
≥ equal to or greater than o
( ) round brackets ;parentheses
[ ] square brackets
{ } braces
∈ is a member of the set
? is a subset of
∽ similar to
≌ congruent to
* denotes an operation
∴ therefore
∵ because
∶ ratio sign, divided by, is to
∷ equals, as(proportion)
∥ parallel to
⊥ perpendicular to, at right angles with
∠ angle
∟ right angle
o degree
′ minute
″ second
⊙ circle
A?B arc AB
e the base of natural logarithms,approx.2.71828
x! factorial x, x(x-1)(x-2)---1
lognx log x to the base n
π pi
lnx log x to the base e(natural logarithm)
lgx log x to the base 10(common logarithm)
|x| the absolute value of x
以上就是新GRE数学常用符号英文注释的整理,这些常用符号在新GRE数学中经常出现,希望考生们能够认真背诵下来。

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重点单词
  • parenthesesn. 圆括号(parenthesis的复数形式)
  • proportionn. 比例,均衡,部份,(复)体积,规模 vt. 使成比
  • perpendicularn. 垂直线 adj. 垂直的,直立的,陡峭的
  • approximatelyadv. 近似地,大约
  • paralleladj. 平行的,相同的,类似的,并联的 n. 平行线(
  • negativeadj. 否定的,负的,消极的 n. 底片,负数,否定
  • basen. 基底,基础,底部,基线,基数,(棒球)垒,[化]碱
  • congruentadj. 合适的,一致的,全等的