Dihedral angles - how to calculate
Andrew Martin
martin at bsm.bioc.ucl.ac.uk
Mon Feb 24 17:56:57 EST 1997
web-server-account (web at pcjfn.msc.com) wrote:
: George A. Heavner (gheavner at voicenet.com) wrote:
: : I am working on a project where I have cartesian coordinates for four
: : consecutive atoms and need to calculate the dihedral angle (with correct
: : sign). I am not a crystallographer and readily admit to difficulty with
: : the math. The magnitude is not difficult (angle between two planes) but
: : I am stuck on the sign. Can anyone provide me with the procedure or
: : point me to a readily intelligible text or other source.
Didn't see the original posting, but you can use my torsions
program available via my web page :-)
Best wishes,
Andrew
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