－ minus 减号；负号
plus or minus 正负号
� is multiplied by 乘号
is divided by 除号
＝ is equal to 等于号
≠ is not equal to 不等于号
≡ is equivalent to 全等于号
≌ is approximately equal to 约等于
≈ is approximately equal to 约等于号
＜ is less than 小于号
＞ is more than 大于号
≤ is less than or equal to 小于或等于
≥ is more than or equal to 大于或等于
％ per cent 百分之…
∞ infinity 无限大号
√ (square) root 平方根
X squared X的平方
X cubed X的立方
∵ since; because 因为
∴ hence 所以
∠ angle 角
⌒ semicircle 半圆
⊙ circle 圆
○ circumference 圆周
△ triangle 三角形
⊥ perpendicular to 垂直于
∪ intersection of 并，合集
∩ union of 交，通集
∫ the integral of …的积分
∑ (sigma) summation of 总和
degree 度
′ minute 分
〃 second 秒
＃ number …号
＠ at 单价