Files windowsinit.mu and userinit.mu have MuPAD utilities for Math 3306.

If you are a Windows user, right click on windowsinit.mu and save it in your
My Documents folder.  Then start MuPAD, click on View, Options, Kernel, and
click on the three dots to the right of the start-up file blank.  Look for file 
windowsinit.mu and click on it.  You may need to click on Open.  This should 
put the complete "pathname" for windowsinit.mu in the start-up file blank.  The 
next time you start MuPAD the Math 3306 utilities should be available.  Type 
names() at the MuPAD prompt to see a list of the utilities.  If that doesn't 
work, something is wrong, because names() is one of the utilities.

If you are a Linux user, right click on userinit.mu and save it in your .mupad 
folder.  That's right, the name .mupad starts with a dot.  The next time you 
start MuPad the Math 3306 utilities should be available.  Type names() at the 
MuPAD prompt to see a list of the utilities.  If that doesn't work, something 
is wrong, because names() is one of the utilities.