p5-MatrixReal is port of the perl module Math::MatrixReal, implementing a matrix of Reals. Math::MatrixReal needs support for operator overloading to support operations on matrixes as though they were just another basic perl type. In addition to the basics (+, -, *) also supported are: matrix norm, matrix transposition, matrix inverse, determinant of a matrix, order and numerical condition of a matrix, scalar product of vectors, vector product of vectors, vector length, projection of row and column vectors, a comfortable way for reading in a matrix from a file, the keyboard or your code, solving linear equations, etc. It also has an implementation of Kleene's algorithm for finding minimal costs for paths in a graph. WWW: http://search.cpan.org/dist/Math-MatrixReal/