# Cross multiplication --- Introduction ---

We know that the multiplication of matrices is not commutative, that is, if $A$ and $B$ are two square matrices of the same size, the matrix $C=AB-BA$ is not zero in general.
This exercise Cross multiplication therefore presents you two matrices $A$ and $C$, of size .And your goal will be to find a matrix $B$ such that $AB-BA=C$ (or $BA-AB=C$, according to the circonstances).

Other exercises on: Matrix   Linear algebra

The most recent version

This page is not in its usual appearance because WIMS is unable to recognize your web browser.
In order to access WIMS services, you need a browser supporting forms. In order to test the browser you are using, please type the word wims here: and press Enter''.

Please take note that WIMS pages are interactively generated; they are not ordinary HTML files. They must be used interactively ONLINE. It is useless for you to gather them through a robot program.

• Description: find a matrix not commuting with a given one. interactive exercises, online calculators and plotters, mathematical recreation and games
• Keywords: interactive mathematics, interactive math, server side interactivity, algebra, linear_algebra, commutativity, matrix