Cartesian vs Internal coordinates

From: scsupham #*at*# reading.ac.uk
Subject: Cartesian vs Internal coordinates
Date: Wed, 13 Jan 93 10:37:32 GMT

----------
 X-Sun-Data-Type: text
 X-Sun-Data-Description: text
 X-Sun-Data-Name: text
 X-Sun-Content-Lines: 15
 Dear All,
         I have always assumed that given the same starting geometry any
 program that has a choice as to how one enters it should (in the end)
 produce the same optimised final geometry. Is this true or false ?
 Without wishing to embarasses anyone I have at least one program
 genearally available where different final geometries are obtained.
 Any comments (apart form use internal coordinates) ?
  john upham
 John Upham, Dept. of Chemistry, University of Reading, Berks., RG6 2AD, UK.
 Email: scsupham%susssys1.rdg.ac.uk #*at*# uk.ac (BITnet), scsupham #*at*#
 rdg.susssys1 (Janet)
 Voice:   +44 734 875123 x7441 (day), Fax: +44 734 311610
 ----------
 X-Sun-Data-Type: default
 X-Sun-Data-Description: default
 X-Sun-Data-Name: .signature
 X-Sun-Content-Lines: 3
 John Upham, Dept. of Chemistry, University of Reading, Berks., RG6 2AD, UK.
 Email: scsupham%susssys1.rdg.ac.uk #*at*# uk.ac (BITnet), scsupham #*at*#
 rdg.susssys1 (Janet)
 Voice:   +44 734 875123 x7441 (day), Fax: +44 734 311610