3.251. __nv_powif
Prototype:
float @__nv_powif(float %x, i32 %y)
Description:
Calculate the value of x to the power of y.
Returns:
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__nv_powif( , y) returns for y an integer less than 0.
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__nv_powif( , y) returns for y an odd integer greater than 0.
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__nv_powif( , y) returns +0 for y > 0 and not and odd integer.
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__nv_powif(-1, ) returns 1.
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__nv_powif(+1, y) returns 1 for any y, even a NaN.
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__nv_powif(x, ) returns 1 for any x, even a NaN.
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__nv_powif(x, y) returns a NaN for finite x < 0 and finite non-integer y.
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__nv_powif(x, ) returns for .
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__nv_powif(x, ) returns +0 for .
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__nv_powif(x, ) returns +0 for .
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__nv_powif(x, ) returns for .
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__nv_powif( , y) returns -0 for y an odd integer less than 0.
-
__nv_powif( , y) returns +0 for y < 0 and not an odd integer.
-
__nv_powif( , y) returns for y an odd integer greater than 0.
-
__nv_powif( , y) returns for y > 0 and not an odd integer.
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__nv_powif( , y) returns +0 for y < 0.
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__nv_powif( , y) returns for y > 0.
For accuracy information see the CUDA C++ Programming Guide, Mathematical Functions Appendix, Single-Precision Floating-Point Functions section.
Library Availability:
Compute 2.0: Yes
Compute 3.0: Yes
Compute 3.5: Yes