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# Copyright (C) 2000 by Peter J. Gawthrop
###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.15 2002/08/29 15:45:20 geraint
## Tests for existence of matrix before entering shell loop.
## Tests for existence of expression before attempting to write or optimise.
##
## Revision 1.14 2002/08/09 14:34:45 geraint
## Fix to prevent numbers being formed with a decimal point in the exponent, Reduce cannot handle these.
##
## Revision 1.13 2002/07/10 17:43:05 geraint
## Added feature [ 562453 ] Optimisation of algebraic equations.
##
## Revision 1.12 2002/06/28 10:13:40 geraint
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else
echo 'off echo$'
echo 'load gentran$'
fi >> $1_$2_write.r
for matrix in $matrices; do
matrix_exists=`grep -i MTT${matrix} ${sys}_dae.r | wc -l | gawk '{print $1}'`
if [ $matrix_exists -gt 0 ]; then
if [ "$matrix" = "EdX" -o $matrix_exists -gt 0 ]; then
n=`first "$ns"`; ns=`rest "$ns"`
m=`first "$ms"`; ms=`rest "$ms"`
is=`n2m 1 $n`;
js=`n2m 1 $m`;
if [ $n -ge 1 ]; then
for i in $is; do
for j in $js; do
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