21 Jul 1991 ehg (slightly) newer version of main*.f innhp.dat installed other files updated from toms alg 652 23 Jul 1991 ehg installed new files from Layne with comments in columns 73-80 fixpnf.f gmfads.f odoc.for fjacs.f fixpqs.f multds.f initp.f pcgds.f mfacds.f pcgns.f stepnf.f rhojs.f rootqs.f stepns.f tangns.f