+ plus
加號;正號
- minus
減號;負號
± plus or minus
正負號
× is multiplied by
乘號
÷ is divided by
除號
= is equal to
等于號
≠ is not equal to
不等于號
≡ is equivalent to
全等于號
≌ is equal to or approximately equal to
等于或約等于號
≈ is approximately equal to
約等于號
< is less than
小于號
> is greater than
大于號
≮ is not less than
不小于號
≯ is not more than
不大于號
≤ is less than or equal to
小于或等于號
≥ is more than or equal to
大于或等于號
% per cent
百分之…
‰ per mill
千分之…
∞ infinity
無限大號
∝ varies as
與…成比例
√ (square) root
平方根
∵ since; because
因為
∴ hence
所以
∷ equals, as (proportion)
等于，成比例
∠ angle
角
⌒ semicircle
半圓
⊙ circle
圓
○ circumference
圓周
π pi
圓周率
△ triangle
三角形
⊥ perpendicular to
垂直于
∪ union of
并，合集
∩ intersection of
交，通集