NAME

       unitconv - simple energy and length units converter

SYNOPSIS

       unitconv [unit] value
       unitconv [unit] expression

DESCRIPTION

       unitconv  is  a  simple  energy  and  length units converter (written in Tcl). It is a utility program of
       xcrysden package (http://www.xcrysden.org/).

ENERGY UNITS

       The following energy units are supported.  The following list contain the "unit  --  description"  pairs,
       where the unit is to be specified on the command line.

       au -- Hartree

       ry -- Rydberg

       ev -- eV (electron volt)

       kjm -- kJ/mol

       kj -- kJ

       kcalm -- kcal/mol

       kcal -- kcal

LENGTH UNITS

       The following length units are supported (usage as above):

       angs -- Angstrom

       bohr -- Bohr radius

       m -- meter

EXAMPLES

       Convert a value from eV to other energy units:

       unitconv ev 3.25

       Calculate  an expression (values in Rydberg unit) and convert to other energy units (note that expression
       must be quoted):

       unitconv ry "-103.134567 - (-240.691356 - -2*17.543471)/2"

       In expression also mathematical functions available in tclsh can be used.

COPYRIGHT

       Copyright (C) 1996--2012 Anton Kokalj

       This program is free software; you can redistribute it and/or modify  it  under  the  terms  of  the  GNU
       General  Public License as published by the Free Software Foundation; either version 2 of the License, or
       (at your option) any later version.  You should have received a copy of the GNU  General  Public  License
       along  with  this  program;  if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite
       330, Boston, MA 02111-1307, USA.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY  WARRANTY;  without  even
       the  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
       License for more details.