(单词翻译:单击)
符号在新GRE数学考试中是必不可少的,由于GRE数学里面的符号都是英文,所以有很多考生不容易理解,下面小编就给大家列举一些比较基本也非常重要的新GRE数学符号,供大家参考。
如果弄不懂一些基本的新GRE数学考试符号的表示方法的话,那一定读不懂数学题目。下面就为大家分享一些新GRE数学符号,帮助大家掌握数学基础知识。
+ 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