Circular Trigonometric Functions

Function: double gsl_sf_sin (double x)

Function: int gsl_sf_sin_e (double x, gsl_sf_result * result)

These routines compute the sine function @math{\sin(x)}.

Function: double gsl_sf_cos (double x)

Function: int gsl_sf_cos_e (double x, gsl_sf_result * result)

These routines compute the cosine function @math{\cos(x)}.

Function: double gsl_sf_hypot (double x, double y)

Function: int gsl_sf_hypot_e (double x, double y, gsl_sf_result * result)

These routines compute the hypotenuse function @c{$\sqrt{x^2 + y^2}$} @math{\sqrt{x^2 + y^2}} avoiding overflow and underflow.

Function: double gsl_sf_sinc (double x)

Function: int gsl_sf_sinc_e (double x, gsl_sf_result * result)

These routines compute @math{\sinc(x) = \sin(\pi x) / (\pi x)} for any value of x.