#define _USE_MATH_DEFINES

#include <cmath>

#include <matplotlibcpp.h>

#include <xtensor/xbuilder.hpp>

#include <xtensor/xtensor.hpp>

using namespace std;

namespace plt = matplotlibcpp;

int main()

{

// Prepare data

int n = 500;

xt::xtensor<double, 1> i = xt::linspace<double>(0, (n-1), n);

std::array<std::size_t,1> shape{static_cast<std::size_t>(n)};

xt::xtensor<double, 1> w(shape);

w.fill(2.0);

xt::xtensor<double, 1> x = xt::square(i);

xt::xtensor<double, 1> y = xt::sin(2 * xt::numeric_constants<double>::PI * i / 360.0);

xt::xtensor<double, 1> z = xt::log(i);

// Set the "super title"

plt::suptitle("My plot");

plt::subplot(1, 2, 1);

plt::plot(x, y+2, "r-");

plt::subplot(1, 2, 2);

plt::plot(x-50000, z-2, "k-");

// Add some text to the plot

plt::text(100, 90, "Hello!");

// Show plots

plt::show();

}