Equals sign

Several terms redirect here. For other uses, see Equal (disambiguation), Double hyphen, Assignment (computer science), Glossary of mathematical symbols#Equality, equivalence and similarity, and Equals (album).
=
Equals sign
In UnicodeU+003D = EQUALS SIGN (=)
Related
See alsoU+2260 ≠ NOT EQUAL TO
U+2248 ≈ ALMOST EQUAL TO
U+2261 ≡ IDENTICAL TO
A well-known equality featuring the equal sign

The equals sign (British English) or equal sign (American English), also known as the equality sign, is the mathematical symbol =, which is used to indicate equality in some well-defined sense.[1] In an equation, it is placed between two expressions that have the same value, or for which one studies the conditions under which they have the same value.

In Unicode and ASCII, it has the code point U+003D.[2] It was invented in 1557 by Robert Recorde.

  1. ^ Weisstein, Eric W. "Equal". mathworld.wolfram.com. Archived from the original on 2020-09-14. Retrieved 2020-08-09.
  2. ^ "C0 Controls and Basic Latin Range: 0000–007F" (PDF). Unicode Consortium. p. 0025 – 0041. Archived (PDF) from the original on 2016-05-26. Retrieved 2021-03-29.