5.3.2 _Q15acos Function
This function finds the arc cosine of a Q15 value.
Include
<libq.h>
Prototype
_Q15 _Q15acos(_Q15 x);
Argument
x |
a fixed-point number in Q15 format, which ranges from -215 to 215-1. Therefore the value of this argument ranges from 17705 to 32767. |
Return Value
This function returns the arc cosine of x in Q15 format.
The value ranges from 256 to 32767.