_Q15atanYByX Function

This function finds the arc tangent of a Q15 value divided by a second Q15 value.

Include

<libq.h>

Prototype

_Q15 _Q15atanYByX(_Q15 x, _Q15 y);

Arguments

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.
y 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 y divided by x in Q15 format. The value ranges from -25736 to 25735.