[#355 Wrong sign in derivation of besselK] example

[Bill Page]

Changes http://wiki.axiom-developer.org/355WrongSignInDerivationOfBesselK/diff
--

++added:
+
+\begin{axiom}
+D(besselK(a,x),x)
+\end{axiom}
+

--
forwarded from http://wiki.axiom-developer.org/[EMAIL PROTECTED]