5.3.78 _Q31atanYByX Function
This function finds the arc tangent of a Q31 value divided by a second Q31 value.
Include
<libq.h>
Prototype
_Q31 _Q31atanYByX(_Q31 x, _Q31 y);
Arguments
x |
a fixed-point number in Q31 format, which ranges from -231 to 231-1. The value of this argument ranges from -2147483648 to 2147483647. |
y |
a fixed-point number in Q31 format, which ranges from -231 to 231-1. The value of this argument ranges from -2147483648 to 2147483647. |
Return Value
This function returns the arc tangent of y divided by x
in Q31 format. The value ranges from -1686629714 to 1686629713.