Class cubic_real_coeff_gsl (o2scl)¶
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class
o2scl
::
cubic_real_coeff_gsl
: public o2scl::cubic_real_coeff¶ Solve a cubic with real coefficients and complex roots (GSL)
Public Functions
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~cubic_real_coeff_gsl
()¶
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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 \( x=x_3 \) .
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const char *
type
()¶ Return a string denoting the type (“cubic_real_coeff_gsl”)
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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()
This is an alternative to the function
gsl_poly_complex_solve_cubic()
with some small corrections to ensure finite values for some cubics. Seesrc/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.
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