About the quaternions

[charles marchetti]

Hello,
I was trying to use the quaternions. So on some web pages, there were some functions as rt_quaternion... It was written in Scilab/Scicos... 
But today, Scicos is obsolete we need to use xcos and there is nothing about the quaternions...

With the previous version Scilab 5.1.1 It was possible to use some commands like CTRL P CTRL A Etc... I am working on Mac Book Pro... under the Leopard environment. Today these things are impossible?

Thanks  for your help
Charles Marchetti