title: Does numexpr support special bessel functions?
body: <p>I need to evaluate BesselK function at about ten million points. I know <code>scipy.special</code> supports this as <code>scipy.special.kv(n, x)</code>, but I want a faster evaluation as well as a memory efficient evaluation. Ideally <code>numexpr</code> would be good, and I tried <code>numexpr.evaluate("kv(n, x)")</code> as well as <code>numexpr.evaluate("besselk(n,x)")</code> but both did not work. Does anyone know the exact command for BesselK in <code>numexpr</code>?</p>