## 3.104. __nv_fast_log10f

Prototype:

```float @__nv_fast_log10f(float %x)

```

Description:

Calculate the fast approximate base 10 logarithm of the input argument x.

Returns:

Returns an approximation to ${\mathrm{log}}_{10}\left(x\right)$ .

Note:

For accuracy information for this function see the CUDA C++ Programming Guide, Appendix E.2, Table 9.

Most input and output values around denormal range are flushed to sign preserving 0.0.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes