4if [ -z $JPP_DIR ]; then
 
    5    echo "Variable JPP_DIR undefined."
 
    9source $JPP_DIR/setenv.sh $JPP_DIR >& /dev/null
 
   11set_variable:  DEBUG       PHYSICS_DEBUG          3
 
   12set_variable:  WORKDIR     PHYSICS_WORKDIR        ${TMPDIR:-/tmp}
 
   13set_variable:  FORMAT      GRAPHICS_FORMAT        gif
 
   14set_variable+  BATCH       GRAPHICS_BATCH         -B
 
   20$JPP_DIR/examples/JPhysics/JDIS \
 
   21    -o $WORKDIR/dis.root         \
 
   25    -f $WORKDIR/dis.root:sigma        \
 
   33    -o sigma.$FORMAT                  $BATCH
 
   36    -f $WORKDIR/dis.root:v            \
 
   40    -\^ "#frac{d#sigma}{dv}"          \
 
   46    -o fig.15.$FORMAT                 $BATCH
 
   49    -f $WORKDIR/dis.root:RMS          \
 
   53    -\^ "<#theta^{2}>^{1/2}"          \
 
   59    -o fig.16.$FORMAT                 $BATCH
 
   61$JPP_DIR/examples/JPhysics/JDIS \
 
   62    -o $WORKDIR/dis.root         \
 
   67    -f $WORKDIR/dis.root:ran          \
 
   68    -f $WORKDIR/dis.root:v            \
 
   73    -\^ "#frac{d#sigma}{dv}"          \
 
   79    -o fig.15.$FORMAT                 $BATCH