Fix vonmisesvariate() -- it now returns an angle between 0 and *two*
times pi. Got rid of $math$ here and in one other place.
diff --git a/Doc/lib/librandom.tex b/Doc/lib/librandom.tex
index fb62f8f..b76822e 100644
--- a/Doc/lib/librandom.tex
+++ b/Doc/lib/librandom.tex
@@ -30,7 +30,7 @@
Circular uniform distribution. \var{mean} is the mean angle, and
\var{arc} is the range of the distribution, centered around the mean
angle. Both values must be expressed in radians, and can range
-between 0 and $\pi$. Returned values will range between
+between 0 and pi. Returned values will range between
\code{\var{mean} - \var{arc}/2} and \code{\var{mean} + \var{arc}/2}.
\end{funcdesc}
@@ -65,11 +65,11 @@
\end{funcdesc}
\begin{funcdesc}{vonmisesvariate}{mu, kappa}
-\var{mu} is the mean angle, expressed in radians between 0 and pi,
+\var{mu} is the mean angle, expressed in radians between 0 and 2*pi,
and \var{kappa} is the concentration parameter, which must be greater
-then or equal to zero. If \var{kappa} is equal to zero, this
+than or equal to zero. If \var{kappa} is equal to zero, this
distribution reduces to a uniform random angle over the range 0 to
-$2\pi$.
+2*pi.
\end{funcdesc}
\begin{funcdesc}{paretovariate}{alpha}
diff --git a/Doc/librandom.tex b/Doc/librandom.tex
index fb62f8f..b76822e 100644
--- a/Doc/librandom.tex
+++ b/Doc/librandom.tex
@@ -30,7 +30,7 @@
Circular uniform distribution. \var{mean} is the mean angle, and
\var{arc} is the range of the distribution, centered around the mean
angle. Both values must be expressed in radians, and can range
-between 0 and $\pi$. Returned values will range between
+between 0 and pi. Returned values will range between
\code{\var{mean} - \var{arc}/2} and \code{\var{mean} + \var{arc}/2}.
\end{funcdesc}
@@ -65,11 +65,11 @@
\end{funcdesc}
\begin{funcdesc}{vonmisesvariate}{mu, kappa}
-\var{mu} is the mean angle, expressed in radians between 0 and pi,
+\var{mu} is the mean angle, expressed in radians between 0 and 2*pi,
and \var{kappa} is the concentration parameter, which must be greater
-then or equal to zero. If \var{kappa} is equal to zero, this
+than or equal to zero. If \var{kappa} is equal to zero, this
distribution reduces to a uniform random angle over the range 0 to
-$2\pi$.
+2*pi.
\end{funcdesc}
\begin{funcdesc}{paretovariate}{alpha}