NAG Library Routine Document
X02AHF returns the largest positive argument for which the
Fortran intrinsic functions SIN and COS
return a result with some meaningful accuracy.
|REAL (KIND=nag_wp) X02AHF
The trigonometric functions and supplied in some compiler run-time libraries do not return accurate results when their argument is large. Often the related accuracy of a result gets progressively worse as the argument gets larger. X02AHF gives a value beyond which the compiler run-time library returns results with no relative accuracy at all. Note that some run-time libraries do return accurate results for all arguments to and .
- 1: X – REAL (KIND=nag_wp)Dummy
6 Error Indicators and Warnings