5.3.36 _Q16acosByPI Function

This function finds the arc cosine of a Q16 value and then divides by PI (π).

Include

<libq.h>

Prototype

_Q16 _Q16acosByPI(_Q16 x);

Argument


`x`	a fixed-point number in Q16 format. The value of this argument ranges from -65536 to 65535.

Return Value

This function returns the arc cosine of x, divided by PI, in Q16 format. The value ranges from 65536 to 115 respectively.