EMatrix - README

EMatrix is a lightweight matrix library developed in C++. EMatrix is designed to help solve engineering and math problems requiring vectors and matrices. EMatrix is OS independent and is as portable as we can make it. EMatrix supports overloaded operators, links with Lapack, and includes functions to facilitate porting from Octave type matrix scripting languages to C++.

Platforms

EMatrix compiles and runs with g++ and clang++, as well as, Visual Studio 2015.

Simple Example:

#include <iostream>
#include "EMatrix.h"

int main(void) {

    ematrix::Matrix<double,3,3> A = {1.,2.,3.,0.,0.,0.,0,0,0};
    ematrix::Matrix<double,3,3> B = {1,1,1,3,4,5,3,6,10};
    std::cout << A+inv(B);

    return(0);
}

To compile: $ g++ example_in_readme.cpp -llapack or g++ example_in_readme.cpp "-l:liblapack.so.3"

See also test_EMartrix.cpp for an additional ideas.

Installation

Place EMatrix.h in the directory of your choosing. Tell your compiler where it is. For g++, add -I<your directory>; see the provided Makefile for an example. In your code, #include "EMatrix.h" where you need to and off you go.

Dependencies

If one needs to take a matrix inverse or determinant, Lapack is required. Lapack is an open source linear algebra package and is available from http://www.netlib.org/lapack/. For Linux, Cygwin and MinGW users, one can install or build Lapack very easily. Visual Studio platforms can require a bit more effort. Most expediently, one can download the compiled libraries from http://icl.cs.utk.edu/lapack-for-windows/lapack/. Another option is compile and link with CLapack, and f2c'd version of Lapack. In fact, one can extract the necessary files in less than two hours. In future versions, I plan to include the requisite files. I also plan to investigate the now included C interface to Lapack.

Authors

EMatrix, formerly CMatrix and DMatrix, was originally written by The Riddler. This Author picked up the baton. Many others helped with suggestions and bug fixes.

Mail suggestions to The Joker apdougla@users.sourceforge.net

License

This file is part of EMatrix, the C++ matrix library distribution. This project is licensed under the terms of the MIT license. The full text of the license file can be found in LICENSE.