Arageli

This is a fork of Arageli project imported from SourceForge SVN.

Arageli is C++ library for computations in arithmetic, algebra, geometry, linear and integer linear programming. Arageli provides routines supporting precise, i.e. symbolic or algebraic, computations. It contains definitions of basic algebraic structures such as integer numbers with arbitrary precision, rational numbers, vectors, matrices, polynomials etc.

See project description in original README

Goals of this fork

• Compile library by recent versions of GCC and Clang. There was no active development in original SVN repository since the second half of 2012. Building the code from SVN fails with modern compiler versions.
• Improve perfomance of arbitrary precision computations: classes big_int and big_float. It should be comparable to well known arbitrary precision libraries like GMP and Boost.Multiprecision.

Supporting MSVC is not a goal. However, it will be great if there is a volunteer who can help with MSVC.

Building with CMake (Linux)

Setting up the build

Create a directory for a build

mkdir mybuild
cd mybuild

Optionally override default compiler

export CC=/usr/bin/clang-15
export CXX=/usr/bin/clang++-15

Prepare makefiles

cmake ..

Building the library

make

Running tests

make runtests

Installing (may need root access)

make install

Building Hello, World application

hello_arageli.cpp:

#include <iostream>
#include <arageli/arageli.hpp>

int main()
{
    using Arageli::big_int;

    big_int a = "222222222222222222222222222222";
    big_int b = "111111111111111111111111111111";

    std::cout << a  << " + " << b << " = " << a + b << "\n";
    std::cout << a  << " - " << b << " = " << a - b << "\n";
    std::cout << a  << " * " << b << " = " << a * b << "\n";
    std::cout << a  << " / " << b << " = " << a / b << "\n";
}

c++ -O2 hello_arageli.cpp -o hello_arageli -larageli
./hello_arageli