o2scl::cubic_real_coeff_gsl Class Reference

Solve a cubic with real coefficients and complex roots (GSL) More...

`#include <poly.h>`

Inheritance diagram for o2scl::cubic_real_coeff_gsl:

## Public Member Functions

virtual int solve_rc (const double a3, const double b3, const double c3, const double d3, double &x1, std::complex< double > &x2, std::complex< double > &x3)
Solves the polynomial giving the real solution and two complex solutions and .

const char * type ()
Return a string denoting the type ("cubic_real_coeff_gsl")

int gsl_poly_complex_solve_cubic2 (double a, double b, double c, gsl_complex *z0, gsl_complex *z1, gsl_complex *z2)
An alternative to `gsl_poly_complex_solve_cubic()` More...

Public Member Functions inherited from o2scl::cubic_real_coeff
virtual int solve_r (const double a3, const double b3, const double c3, const double d3, double &x1, double &x2, double &x3)
Solves the polynomial giving the three solutions , , and .

const char * type ()
Return a string denoting the type ("cubic_real_coeff")

Public Member Functions inherited from o2scl::cubic_real
const char * type ()
Return a string denoting the type ("cubic_real")

## Detailed Description

Definition at line 494 of file poly.h.

## ◆ gsl_poly_complex_solve_cubic2()

 int o2scl::cubic_real_coeff_gsl::gsl_poly_complex_solve_cubic2 ( double a, double b, double c, gsl_complex * z0, gsl_complex * z1, gsl_complex * z2 )

This is an alternative to the function `gsl_poly_complex_solve_cubic()` with some small corrections to ensure finite values for some cubics. See `src/other/poly_ts.cpp` for more.

Idea for Future:
I think the GSL function is now fixed, so we can fall back to the original GSL function here.

The documentation for this class was generated from the following file:
• /home/awsteiner/wcs/o2scl/src/other/poly.h

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