Scientific computing C++ library. Uses template techniques to achieve high performance.

CLN is a library for computations with all kinds of numbers. It has a rich set of number classes: Integers (with unlimited precision), Rational numbers, Floating-point numbers, Complex numbers, Modular integers (integers modulo a fixed integer), Univa...

Supports arithmetic operations, sub-matrix operations, inversion, various matrix decompositions, solution of simultaneous linear equations, and eigen value and eigen vector problem. (by Techsoft)