# Equality

- Symbol:
- The relationship between two quantities that have the same value or values. If two quantities are not equal, the symbol is used. When the equality is only approximate, the symbol is used. When two expressions are exactly equivalent, the symbol is used.

- 1557
*= sign used by Robert Record*

**Historical Notes**

**See also: **Inequality, Mathematical Symbols, not equal to, of the order of.

**Subjects: ** Mathematics