AEAS常用数学符号的英语单词，高频词汇常见符号。更多AEAS真题下载：aeas.englang.cn
|
＋
|
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)
|
|
|
square root of
|
|
|
cube root of
|
|
∥
|
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
|
优朗AEAS真题下载网站：aeas.englang.cn 全国热线：400-800-8273
