± |
plus or minus |
× ;˙ |
times or mutiply |
÷ |
divide |
- ; / |
divide, such as a/b |
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= |
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 |
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: |
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" |
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√ |
positive square root |
n的次方根 |
nth root |
! |
factorial |
指数 |
exponent, use a as a factor b times |
ab |
subscript, for descriptive discrimination |
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% |
percent |
| | |
absolute value |
~ |
similar, is similar to |
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ㄥ |
angle, as in ㄥA or ㄥABC |
mㄥ |
measure of angle |
直角 |
right angle; is perpendicular to |
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⊙ |
circle |
弧形 |
arc |
△ |
triangle |
正三角 |
equilateral triangle |
等腰三角 |
isosceles triangle |
直角三角 |
right triangle |
□ |
square |
四边形 |
quadrilateral |
平行四边形 |
parallelogram |
梯形 |
trapezoid |
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( x , y ) |
coordinates of a point in a plane |
( x , y , z ) |
coordinates of a point in space |
∴ |
therefore |
$ |
dollar sign |
¢ |
cent sign |
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( ) |
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 |
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圆周 |
Circumference |
面积 |
area |
直径 |
diameter |
半径 |
radius |
周边;周长 |
perimeter |
次方 |
power |
根(数) |
root |
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长 |
length |
宽 |
width |
高 |
height |
基数;底边 |
base |