NCR and NPR



Hi all,

 

I am a senior secondary student in Australia studying Maths Methods, and I
use maxima a lot as my preferred CAS calculator because sinse I have no
vision, the normal calculators are of no use to me as there is no accessible
interface that I can use.  I have a question relating to combinatorics: is
it possible to do permutations in maxima? I can do them in my head, but when
there are a lot of numbers, this can get tricky.  So is there a function I
can use for NCR or NPR? If so, this would also save a lot of typing so that
I don't have to manually do so much multiplication.  

 

If anyone is able to offer any suggestions, I would be greatful.

 

Kind regards,

 

Nathaniel Schmidt