5.3.18 _Q15log Function
This function finds the natural log of a Q15 value.
Include
<libq.h>
Prototype
_Q15 _Q15log(_Q15 x);
Argument
x |
a fixed-point number in Q15 format, which ranges from -215 to 215-1. The value of this argument ranges from 12055 to 32767. |
Return Value
This function returns the natural log of x in Q15 format.
The value ranges from -32768 to -1.