Function sind

source/matplot/util/common.cpp:371–376

    }

    double sind(double degrees) {
        // 0 -> 0
        // 180 -> pi
        // 360 -> 2pi
        return sin(pi * degrees / 180);
    }

    std::vector<double> deg2rad(const std::vector<double> &degrees) {
        std::vector<double> rad(degrees.size());