IT++ is a C++ library of mathematical, signal processing and communication classes and functions. Its main use is in simulation of communication systems and for performing research in the area of communications.
Armadillo is faster for matrix operations and has more functionality, while providing a similar API to IT++. See arma.sourceforge.net
too complicated to set up. and seems like zero support. it would have been good to supply a base release that does not rely on other libs like fortran, fft, lapack etc, just a nice release that is all c++ would have been better. then if someone wants to have optimised libs like those mentioned they could have supplied them seprate from main release. great idea, but seems like most will just stick with octave, python, matlab. i managed to get it to configure and build and create a dynamic lib, but when used in xcode there are just tonnes of missing symbols. seems like support for mac is minimal.