added Mark Schmidt's fastDerivativeCheck.m to get minFunc's 'DerivativeCheck' option to work. Downloaded today from http://www.cs.ubc.ca/~schmidtm/Software/ , BSD licensed
added Mark Schmidt's fastDerivativeCheck.m to get minFunc's 'DerivativeCheck' option to work. Downloaded today from http://www.cs.ubc.ca/~schmidtm/Software/ , BSD licensed

ypeels/stanford_dl_ex,ypeels/stanford_dl_ex,ypeels/stanford_dl_ex