Get rid of math mode in some places.
diff --git a/Doc/libmath.tex b/Doc/libmath.tex
index e41edda..8f7eeba 100644
--- a/Doc/libmath.tex
+++ b/Doc/libmath.tex
@@ -37,7 +37,7 @@
\end{funcdesc}
\begin{funcdesc}{exp}{x}
-Return the exponential value $\mbox{e}^x$.
+Return \code{e**\var{x}}.
\end{funcdesc}
\begin{funcdesc}{fabs}{x}
@@ -62,7 +62,7 @@
\end{funcdesc}
\begin{funcdesc}{ldexp}{x, i}
-Return $x {\times} 2^i$.
+Return \code{\var{x} * (2**\var{i})}.
\end{funcdesc}
\begin{funcdesc}{modf}{x}
@@ -71,7 +71,7 @@
\end{funcdesc}
\begin{funcdesc}{pow}{x, y}
-Return $x^y$.
+Return \code{\var{x}**\var{y}}.
\end{funcdesc}
\begin{funcdesc}{sin}{x}