ADD: unverified but complete polynomial fitting


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5145 42a5c34f-2066-0410-bec5-ba365beb4995
ADD: better error handling


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5146 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: residuals had wrong sign
CHG: don't need to treat degree 0 differently


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5147 42a5c34f-2066-0410-bec5-ba365beb4995
ADD: better error handling


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5148 42a5c34f-2066-0410-bec5-ba365beb4995