REF: use PolynomialHelper class for getting number of monomials
FIX: catch exceptions


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5168 42a5c34f-2066-0410-bec5-ba365beb4995
DOC: typo


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5169 42a5c34f-2066-0410-bec5-ba365beb4995