3.3. __nv_acosf
Prototype:
float @__nv_acosf(float %x)
Description:
Calculate the principal value of the arc cosine of the input argument x.
Returns:
Result will be in radians, in the interval [0,
] for x inside [-1, +1].
-
__nv_acosf(1) returns +0.
-
__nv_acosf(x) returns NaN for x outside [-1, +1].
Note:
For accuracy information for this function see the CUDA C Programming Guide, Appendix D.1, Table 6.
Library Availability:
Compute 2.0: Yes
Compute 3.0: Yes
Compute 3.5: Yes