stem3_8.cpp

#include <cmath>
#include <matplot/matplot.h>

int main() {
    using namespace matplot;

    std::vector<double> theta = linspace(0, 2 * pi);
    std::vector<double> x = transform(theta, [](double t) { return cos(t); });
    std::vector<double> y = transform(theta, [](double t) { return sin(t); });
    std::vector<double> z = theta;

    stem3(x, y, z, ":*m");

    show();
    return 0;
}