Where is the library ?

I need to download the library because matlab doesn't recognises the function quaternion()

I can't find the link to download the library ... Where is it? Thanks

Answer 1

[John D'Errico]

There are two hits I found for quaternion.m. One is one the file exchange, where you can download it.

https://www.mathworks.com/matlabcentral/fileexchange/33341-quaternion

However, you may be trying to use tools from the Robotics System Toolbox. If so, then you need a license for that TB.

https://www.mathworks.com/help/robotics/index.html?s_tid=CRUX_lftnav

[James Tursa]

Also, the quaternion( ) class was introduced rather recently in R2018b. So that version or a later version would be needed.