## File: Trigonometric-Functions-With-Error-Estimates.html

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 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394  GNU Scientific Library – Reference Manual: Trigonometric Functions With Error Estimates

7.31.6 Trigonometric Functions With Error Estimates

Function: int gsl_sf_sin_err_e (double x, double dx, gsl_sf_result * result)

This routine computes the sine of an angle x with an associated absolute error dx, \sin(x \pm dx). Note that this function is provided in the error-handling form only since its purpose is to compute the propagated error.

Function: int gsl_sf_cos_err_e (double x, double dx, gsl_sf_result * result)

This routine computes the cosine of an angle x with an associated absolute error dx, \cos(x \pm dx). Note that this function is provided in the error-handling form only since its purpose is to compute the propagated error.