/[gsl]/gsl/poly/gsl_poly.h
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revision 1.1.1.3 by bjg, Fri Oct 3 09:27:48 2003 UTC revision 1.1.1.3.2.1 by andybuckley, Thu Oct 9 14:27:30 2003 UTC
# Line 95  gsl_poly_complex_solve_quadratic (double Line 95  gsl_poly_complex_solve_quadratic (double
95                                    gsl_complex * z0, gsl_complex * z1);                                    gsl_complex * z0, gsl_complex * z1);
96    
97    
98  /* Solve for real roots of the cubic equation  /* Solve for real or complex roots of the cubic equation
99   * x^3 + a x^2 + b x + c = 0, returning the   * x^3 + a x^2 + b x + c = 0, returning the
100   * number of real roots.   * number of real roots.
101   *   *
# Line 110  gsl_poly_complex_solve_cubic (double a, Line 110  gsl_poly_complex_solve_cubic (double a,
110                                gsl_complex * z2);                                gsl_complex * z2);
111    
112    
113    /* Solve for real or complex roots of the quartic equation
114     * x^4 + a x^3 + b x^2 + c x + d = 0,
115     * returning the number of such roots.
116     *
117     * Roots are returned ordered.
118     */
119    int
120    gsl_poly_solve_quartic (double a, double b, double c, double d,
121                            double * x0, double * x1,
122                            double * x2, double * x3);
123    
124    int
125    gsl_poly_complex_solve_quartic(double a, double b, double c, double d,
126                                   gsl_complex * z0, gsl_complex * z1,
127                                   gsl_complex * z2, gsl_complex * z3);
128    
129    
130  /* Solve for the complex roots of a general real polynomial */  /* Solve for the complex roots of a general real polynomial */
131    
132  typedef struct  typedef struct

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