text: #include <matplot/matplot.h>
  
  int main() {
      using namespace matplot;
  
      auto t = iota(0, pi / 10, 10 * pi);
      auto st = transform(t, [](double t) { return sin(t); });
      auto ct = transform(t, [](double t) { return cos(t); });
      plot3(st, ct, t);
      grid(on);
      ztickformat("%g cm");
  
      wait();
      return 0;
  }