GNU Scientific Library Reference Manual - Third Edition (v1.12) by M. Galassi, J. Davies, J. Theiler, B. Gough, G. Jungman, P. Alken, M. Booth, F. Rossi Paperback (6"x9"), 592 pages, 60 figures ISBN 0954612078 RRP £24.95 ($39.95) Get a printed copy>>>

GNU Scientific Library Reference Manual - Third Edition (v1.12) Buy the book here >>> support free software

7.31.1 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 \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 \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 \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 \sinc(x) = \sin(\pi x) / (\pi x) for any value of x.