_Q15atanByPI Function

This function finds the arc tangent of a Q15 value and then divides by PI (π).

Include

<libq.h>

Prototype

_Q15 _Q15atanByPI(_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 -32768 to 32767.

Return Value

This function returns the arc tangent of x, divided by PI, in Q15 format. The value ranges from -8192 to 8192.