dpnp.arctan2

dpnp.arctan2(x1, x2, /, out=None, *, where=True, order='K', dtype=None, subok=True, **kwargs)

Element-wise arc tangent of x1/x2 choosing the quadrant correctly.

For full documentation refer to numpy.arctan2.

Returns:

out – The inverse tangent of x1/x2, element-wise.

Return type:

dpnp.ndarray

Limitations

Parameters x1 and x2 are supported as either scalar, dpnp.ndarray or dpctl.tensor.usm_ndarray, but both x1 and x2 can not be scalars at the same time. Parameters where, dtype and subok are supported with their default values. Keyword arguments kwargs are currently unsupported. Otherwise the function will be executed sequentially on CPU. Input array data types are limited by real-valued data types.

See also

dpnp.arctan

Trigonometric inverse tangent, element-wise.

dpnp.tan

Compute tangent element-wise.

dpnp.angle

Return the angle of the complex argument.

dpnp.arcsin

Trigonometric inverse sine, element-wise.

dpnp.arccos

Trigonometric inverse cosine, element-wise.

dpnp.arctanh

Inverse hyperbolic tangent, element-wise.

Examples

>>> import dpnp as np
>>> x1 = np.array([1., -1.])
>>> x2 = np.array([0., 0.])
>>> np.arctan2(x1, x2)
array([1.57079633, -1.57079633])

>>> x1 = np.array([0., 0., np.inf])
>>> x2 = np.array([+0., -0., np.inf])
>>> np.arctan2(x1, x2)
array([0.0 , 3.14159265, 0.78539816])

>>> x1 = np.array([-1, +1, +1, -1])
>>> x2 = np.array([-1, -1, +1, +1])
>>> np.arctan2(x1, x2) * 180 / np.pi
array([-135.,  -45.,   45.,  135.])