Object-oriented Scientific Computing Library: Version 0.910
Public Member Functions
gsl_cubic_real_coeff Class Reference

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

#include <poly.h>

Inheritance diagram for gsl_cubic_real_coeff:
cubic_real_coeff cubic_real

Detailed Description

Definition at line 495 of file poly.h.

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 $ a_3 x^3 + b_3 x^2 + c_3 x + d_3= 0 $ giving the real solution $ x=x_1 $ and two complex solutions $ x=x_2 $ and $ x=x_3 $ .
const char * type ()
 Return a string denoting the type ("gsl_cubic_real_coeff")
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()

Member Function Documentation

int gsl_cubic_real_coeff::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:
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Documentation generated with Doxygen. Provided under the GNU Free Documentation License (see License Information).

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