Math Symbols Reference Table
Common arithmetic, algebra, geometry, set, logic and calculus symbols with meanings.
| Symbol | Meaning |
|---|---|
| + | addition / positive |
| − | subtraction / negative |
| ×, · | multiplication |
| ÷, / | division |
| = | equal to |
| ≠ | not equal to |
| ≈ | approximately equal |
| less than / greater than | |
| ≤, ≥ | less/greater than or equal |
| ± | plus or minus |
| √ | square root |
| ∛ | cube root |
| ^ | exponent / power |
| |x| | absolute value |
| π | pi |
| ∞ | infinity |
| ∑ | summation |
| ∏ | product |
| Δ | change / difference |
| ∠ | angle |
| ⊥ | perpendicular |
| ∥ | parallel |
| ∈ | is an element of |
| ∅ | empty set |
| ∩ | intersection |
| ∪ | union |
| ⇒ | implies |
| ∫ | integral |
| d/dx | derivative |
How to use this table
Common arithmetic, algebra, geometry, set, logic and calculus symbols with meanings. Use it as a reference, for practice, or to check your own work. On large tables, scroll horizontally on a phone. Tap cells to visually track a row or value.