graphs/cpp/cartesian_vector/vector_test.cc


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#include <cmath>
#include <iostream>

#include "vector.hh"

double pi()
{
    return std::atan2(0., -1.);
}

int main()
{
    std::cout << "default state pi (double) : " << pi() << '\n';
    Vector piVector{ pi(), pi() };
    Vector t(-1.0E-7, 6.812031E-4);
    std::cout << "piVector :\n" << piVector << '\n';
    std::cout << "t + piVector :\n" << t + piVector << '\n';

    Vector u{ 1923, 8 };
    std::cout << "u :\n" << u << '\n';
    std::cout << "default state (double) : " << u * t << '\n';
    t -= u;
    std::cout << "t :\n" << t << '\n';
    std::cout << "t * 3 :\n" << t * 3 << '\n';

    return 0;
}