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GRE数学考试中的符号有哪些.

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  新GRE考试中需要掌握哪些数学符号呢?众所周知,参加中文的数学考试中有很多的数学符号,在新GRE数学考试中,这些符号也是很重要的,需要考生掌握,下面澳际留学小编就给大家介绍一下GRE数学考试中的符号。

  参加新GRE考试的考生可以来看看,需要掌握的新GRE数学考试符号如下:

  + 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

  ∴ therore

  ∵ 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

  上述就是新GRE数学考试的一些常见符号,参加新GRE考试的考生可以认真阅读本文,对GRE数学考试的符号进行掌握,希望能够给广大考生带来一些帮助。

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