mindspore.ops.coo_acos

mindspore.ops.coo_acos(x: COOTensor)[source]

Computes arccosine of input coo_tensors element-wise.

\[out_i = \cos^{-1}(x_i)\]

Parameters

x (COOTensor) – Input COOTensor.

Returns

COOTensor, has the same shape and dtype as x.

Raises

TypeError – If x is not a COOTensor.
TypeError – If dtype of x is not float16, float32 or float64.

Supported Platforms:: Ascend GPU CPU

Examples

>>> from mindspore import dtype as mstype
>>> from mindspore import Tensor, ops, COOTensor
>>> indices = Tensor([[0, 1], [1, 2]], dtype=mstype.int64)
>>> values = Tensor([-1, 2], dtype=mstype.float32)
>>> shape = (3, 4)
>>> x = COOTensor(indices, values, shape)
>>> output = ops.coo_acos(x)
>>> print(output.values)
[3.1415927       nan]