5.3.9 _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.