#include double frank(double x) { return x*x + 9*x - 3; } void print_test(double value) { print("x = "); print(value); print(", y = "); print(frank(value)); new_line(); } void test_over_range(double begin, double end) { if (begin <= end) { print_test(begin); test_over_range(begin+0.1, end); } } void main() { test_over_range(0.0, 1.0); }