This is a C++ template category library to perform matrix calculations with allay and efficiency in your program. It supports most of the matrix calculations that you may motive to do in your C++ programs. With this category you throne do matrix calculations upright like other built-in data types in your program. It supports arithmetic operations, sub-matrix operations, inversion, various matrix decompositions, solution of simultaneous linear equations, eigen value and eigen vector problem, and much more. Full source cypher is included with the package. This category is optimized for performance and memory usage and incurs negligible programming overhead over "C" programs. But it supports entirely heavy matrices and not the sparse matrices. We take tested matrices of size up to 1000 x 1000 with this category. This package throne be used with any modern ANSI / ISO compliant C++ compilers on any platforms. However, we take tested this package entirely with the following compilers. Compilers Tested: Borland C++ 5.5 C++ Builder 4.0 and 5.0 MS Visual C++ 5.0, and 6.0 If you want to enjoyment it with a different compiler not listed above, please contact us at matrix@techsoftpl.com.