+.BI print_latex( expression );
+.RE
+prints a LaTeX representation of the given
+.IR expression .
+.PP
+The command
+.RS
+.BI print_csrc( expression );
+.RE
+prints the given
+.I expression
+in a way that can be used in a C or C++ program (complex numbers are not
+supported, though).
+.PP
+The command
+.RS