2014年04月11日 22:44 GMT+02:00 Tim Channon <tc@gpsl.net>: > Here is a real and important usage > > "Sinh-arcsinh distributions" They are also essential for tanh-sinh quadrature, which is the fastest known high-precision quadrature scheme, and implementable (if you have them, of course) in only a few lines of Lua. <http://en.wikipedia.org/wiki/Tanh-sinh_quadrature>