matrixMultiply

Type

function

Summary

Returns the matrix product of two arrays.

Syntax

matrixMultiply(<firstArray>, <secondArray>)

Description

Use the matrixMultiply function to perform matrix multiplication.

A two-dimensional array is an array whose elements have a two-part key to describe them. You can visualize such an array as a set of rows and columns:the first part of each element's key is the row number, and the second part is the column number. For example, the expression myArray[3,2] describes the element of myArray which is in the third row, second column.

The number of columns in the firstArray must be the same as the number of rows in the secondArray. There are no other constraints in order for the multiplication to succeed.

Parameters

Name	Type	Description
firstArray	array	The firstArray and secondArray are both two-dimensional array variables whose elements are numbers, and whose keys are sequential numbers.
secondArray	array

Examples

put matrixMultiply(currentLevels,levelAdjustments)

Value

Name	Type	Description
return		The matrixMultiply function returns an array of numbers.
the result		The matrix product of two arrays is itself an array. Each element myArray[M,N] of the product is obtained by multiplying each element of the Mth row by the corresponding element of the Nth column. The resulting numbers are added together to obtain the element in the Mth row and Nth column.

Related

control structure: function

function: extents, transpose

glossary: array, return

keyword: element

command: multiply

Compatibility and Support

Introduced

LiveCode 1.1

OS

mac

windows

linux

ios

android

Platforms

desktop

server

mobile