The original form of the symbol was much wider than the present form. The = symbol, now universally accepted in mathematics for equality, was first recorded by Welsh mathematician Robert Recorde in The Whetstone of Witte (1557).
From The Whetstone of Witte (1557) by Robert Recorde. The first use of an equal sign, equivalent to 14 x+15=71 in modern notation. The etymology of the word "equal" is from the Latin word " æqualis", as meaning "uniform", "identical", or "equal", from aequus ("level", "even", or "just"). It was invented in 1557 by Robert Recorde.
#NOT EQUAL TO SIGN IN MATLAB CODE#
In Unicode and ASCII, it has the code point U+003D. 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. 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. A well-known equality featuring the equal sign
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