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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
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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.
ISBN 0954612078GNU Scientific Library Reference Manual - Third Edition (v1.12)See the print edition