### 32 Mathematical Symbols & Signs and Meanings

**Σ Summation**

**$ Dollar sign**

**≤ Less than or equal**

**“ Quotation Mark**

**: Colon**

**– Dash / hypen**

**Ω Ohm sign**

**X Multiply / times**

**[] Brackets**

**= Equality**

**≈ Approximately equal**

**> Greater than**

**+ Paddition**

**÷ Division**

**3√ Cube root**

**! Exclamation mark**

**/ Division slash**

**∫ Integral**

**≥ Big than or equal**

**/ Slash**

**; Semicolon**

**% Percentage**

**& Ampersand**

**∞ Infinity**

*** Asterisk**

**a^b Caret**

**≠ Not equality**

**< Less than**

**() Parentheses**

**– Subtraction**

**√a Square root**

**π Pi constant**