IT++ is a C++ library of classes and functions for linear algebra, numerical optimization, signal processing, communications, and statistics. It is being developed by researchers in these areas and is widely used by researchers, both in the communications industry and universities. Compute the inverse matrix sine of a square matrix A. If A is symmetric or Hermitian, its eigendecomposition (eigen) is used to compute the inverse sine. Otherwise, the inverse sine is determined by using log and sqrt. For the theory and logarithmic formulas used to compute this function, see . Examples I am testing the F# MathProvider library ( http://mathprovider.codeplex.com/ ). Mathprovider site has a very interesting section called "Ab...