View Compilation Error

0_0_39851747_14609.cpp: In function 'int main()':
0_0_39851747_14609.cpp:34:36: error: cannot convert 'main()::<lambda(double)>' to 'double (*)(double)'
   34 |                                    [=](double xx) { return parabola(xx, p1_x, p1_y, p2_y) - (k * xx + b); });
      |                                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                    |
      |                                    main()::<lambda(double)>
0_0_39851747_14609.cpp:5:51: note:   initializing argument 3 of 'double simpsons_rule(double, double, double (*)(double))'
    5 | double simpsons_rule(double a, double b, double (*f)(double)) {
      |                                          ~~~~~~~~~^~~~~~~~~~