dpnp.cos

dpnp.cos(x, out=None, where=True, order='K', dtype=None, subok=True, **kwargs)

Computes cosine for each element x_i for input array x.

For full documentation refer to numpy.cos.

Parameters:

• x ({dpnp.ndarray, usm_ndarray}) – Input array, expected to have numeric data type.

• out ({None, dpnp.ndarray}, optional) – Output array to populate. Array must have the correct shape and the expected data type.

• order ({"C", "F", "A", "K"}, optional) – Memory layout of the newly output array, if parameter out is None. Default: “K”.

Returns:

out – An array containing the element-wise cosine. The data type of the returned array is determined by the Type Promotion Rules.

Return type:

dpnp.ndarray

Limitations

Parameters where and subok are supported with their default values. Keyword argument kwargs is currently unsupported. Otherwise NotImplementedError exception will be raised.

See also

dpnp.arccos

Trigonometric inverse cosine, element-wise.

dpnp.sin

Trigonometric sine, element-wise.

dpnp.tan

Trigonometric tangent, element-wise.

dpnp.cosh

Hyperbolic cosine, element-wise.

Examples

>>> import dpnp as np
>>> x = np.array([0, np.pi/2, np.pi])
>>> np.cos(x)
array([ 1.000000e+00, -4.371139e-08, -1.000000e+00])