+  (plus)=+
−  (minus)=−
×  (multiplication)=×
÷  (division)=÷
<  (less-than)=<
>  (greater-than)=>
±  (plus-minus)=±
∂  (differential)=∂
∆  (increment)=∆
∏  (product)=∏
∑  (summation)=∑
∕  (division slash)=∕
∙  (bullet)=∙
√  (square root)=√
∞  (infinity)=∞
∟  (right angle)=∟
∩  (intersection)=∩
∫  (integral)=∫
≈  (almost equal to)=≈
≠  (not equal to)=≠
≡  (identical to)=≡
≤  (less-than or equal to)=≤
≥  (greater-than or equal to)=≥
