Repaired oddity in difficult_coeffs
Repaired oddity in difficult_coeffs

The (currently used) 'original' version would get messed up after examining a large negative coefficient.  This issue was fixed in the (unused) 'new' version, although that version also zeros out tiny coefficients, which would (quite likely) be undesirable.

BentSm/povray,BentSm/povray,BentSm/povray,BentSm/povray