| int solve_deg2(double a, double b, double c, double & x1, double & x2); | |
| int solve_deg3(double a, double b, double c, double d, | |
| double & x0, double & x1, double & x2); | |
| int solve_deg4(double a, double b, double c, double d, double e, | |
| double & x0, double & x1, double & x2, double & x3); | |