Atan2

Atan2(y, x)

x, y are scalars

Return a scalar which is the four-quadrant inverse tangent function of x, where result is in radian unit and lies in the closed interval [-pi, pi]

x, y are are matrices of same size/shape

Return a matrix in which the element is the four-quadrant inverse tangent function of the element in x, where result is in radian unit and lies in the closed interval [-pi, pi]

Input

Output

atan2(2, 5)

atan2(1+i, 1-i)

atan2([1+i, 0, 1-i], [-2, 2i, 1+2i])

atan2([-2.3, 1-3i; -2i, 5], [i, 0; 3+i, 2i])