[WWcvs] pg: Don't use dollar signs in the TeX output, since BEGIN_TEXT/END_TEX does command substitution then variable substitution then

[dpvc v. a. <we...@ma...>]

Log Message:
-----------
Don't use dollar signs in the TeX output, since BEGIN_TEXT/END_TEX
does command substitution then variable substitution then math, so
\{$f->TeX\} would insert dollars, which would then be substituted as
variables.

Modified Files:
--------------
    pg/macros:
        contextPiecewiseFunction.pl

Revision Data
-------------
Index: contextPiecewiseFunction.pl
===================================================================
RCS file: /webwork/cvs/system/pg/macros/contextPiecewiseFunction.pl,v
retrieving revision 1.3
retrieving revision 1.4
diff -Lmacros/contextPiecewiseFunction.pl -Lmacros/contextPiecewiseFunction.pl -u -r1.3 -r1.4
--- macros/contextPiecewiseFunction.pl
+++ macros/contextPiecewiseFunction.pl
@@ -740,7 +740,7 @@
   my $self = shift; my @cases = ();
   foreach my $If (@{$self->{data}}) {
     my ($I,$f) = @{$If};
-    push(@cases,'\displaystyle{'.$f->TeX."}&\\text{if \$".$I->TeX."\$}");
+    push(@cases,'\displaystyle{'.$f->TeX."}&\\text{if}\\ ".$I->TeX);
   }
   if (scalar(@cases)) {
     push(@cases,'\displaystyle{'.$self->{otherwise}->TeX.'}&\text{otherwise}') if defined $self->{otherwise};