mathjs/docs/reference/functions/multiply.md

Function multiply

Multiply two or more values, x * y. For matrices, the matrix product is calculated.

Syntax

math.multiply(x, y)
math.multiply(x, y, z, ...)

Parameters

Parameter	Type	Description
x	number | BigNumber | Fraction | Complex | Unit | Array | Matrix	First value to multiply
y	number | BigNumber | Fraction | Complex | Unit | Array | Matrix	Second value to multiply

Returns

Type	Description
number | BigNumber | Fraction | Complex | Unit | Array | Matrix	Multiplication of x and y

Examples

math.multiply(4, 5.2);        // returns number 20.8
math.multiply(2, 3, 4);       // returns number 24

var a = math.complex(2, 3);
var b = math.complex(4, 1);
math.multiply(a, b);          // returns Complex 5 + 14i

var c = [[1, 2], [4, 3]];
var d = [[1, 2, 3], [3, -4, 7]];
math.multiply(c, d);          // returns Array [[7, -6, 17], [13, -4, 33]]

var e = math.unit('2.1 km');
math.multiply(3, e);          // returns Unit 6.3 km

See also

divide, prod, cross, dot