5.3.87 _Q31log Function
This function finds the natural log of a Q31 value.
Include
<libq.h>
Prototype
_Q31 _Q31log(_Q31 x);
Argument
x |
a fixed-point number in Q31 format, which ranges from -231 to 231-1. The value of this argument ranges from 790015084 to 2147483647. |
Return Value
This function returns the natural log of x in Q31 format. The value
ranges from -2147483648 to -1..