mathjs/docs/reference/functions/subtract.md

Function subtract

Subtract two values, x - y. For matrices, the function is evaluated element wise.

Syntax

math.subtract(x, y)

Parameters

Parameter	Type	Description
x	Number | BigNumber | Boolean | Complex | Unit | Array | Matrix | null	Initial value
y	Number | BigNumber | Boolean | Complex | Unit | Array | Matrix | null	Value to subtract from x

Returns

Type	Description
Number | BigNumber | Complex | Unit | Array | Matrix	Subtraction of x and y

Examples

math.subtract(5.3, 2);        // returns Number 3.3

var a = math.complex(2, 3);
var b = math.complex(4, 1);
math.subtract(a, b);          // returns Complex -2 + 2i

math.subtract([5, 7, 4], 4);  // returns Array [1, 3, 0]

var c = math.unit('2.1 km');
var d = math.unit('500m');
math.subtract(c, d);          // returns Unit 1.6 km

See also

add