updated wrapper for fsolve

git-svn-id: https://svn.code.sf.net/p/cocotools/covering/code/trunk@87 e5b6371a-3c2b-4ddb-8cd0-aac754db7fb0
updated wrapper for fsolve

git-svn-id: https://svn.code.sf.net/p/cocotools/covering/code/trunk@89 e5b6371a-3c2b-4ddb-8cd0-aac754db7fb0