Mathematical symbols are used to represent numbers, operations, relations, and other concepts in mathematics.

+ (Plus) – Addition
− (Minus) – Subtraction
× or · (Times) – Multiplication
÷ or / (Divided by) – Division
= (Equals) – Equality
≠ (Not equal to) – Inequality

< (Less than)
> (Greater than)
≤ (Less than or equal to)
≥ (Greater than or equal to)

x, y, z – Variables
√ (Square root)
∛, ∜ (Cube root, fourth root)
^ or ˣ (Exponentiation, e.g.,x²)
|x| (Absolute value)
≡ (Identical to)
≈ (Approximately equal to)

∠ (Angle)
△ (Triangle)
∥ (Parallel)
⊥ (Perpendicular)
° (Degrees)
π (Pi, ≈ 3.14159)

∫ (Integral)
d/dx (Derivative)
∂ (Partial derivative)
lim (Limit)
∞ (Infinity)