mathjs/docs/reference/functions/unequal.md

Function unequal

Test whether two values are unequal.

The function tests whether the relative difference between x and y is larger than the configured epsilon. The function cannot be used to compare values smaller than approximately 2.22e-16.

For matrices, the function tests whether the size or any of the elements of the matrices are unequal (a deep comparison). In case of complex numbers, x.re must unequal y.re, or x.im must unequal y.im.

Syntax

math.unequal(x, y)

Parameters

Parameter	Type	Description
x	Number | BigNumber | Boolean | Complex | Unit | String | Array | Matrix	First value to compare
y	Number | BigNumber | Boolean | Complex | Unit | String | Array | Matrix	Second value to compare

Returns

Type	Description
Boolean | Array | Matrix	Returns true when the compared values are unequal, else returns false

Examples

var math = mathjs();

math.unequal(2 + 2, 3);       // returns true
math.unequal(2 + 2, 4);       // returns false

var a = math.unit('50 cm');
var b = math.unit('5 m');
math.unequal(a, b);           // returns false

See also

equal, smaller, smallerEq, larger, largerEq, compare, dotUnequal