Source code for nvtripy.frontend.ops.unary.cos

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# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
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# http://www.apache.org/licenses/LICENSE-2.0
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from nvtripy import export
from nvtripy.common import datatype as dt
from nvtripy.frontend.ops import utils as op_utils
from nvtripy.trace.ops.unary import Cos
from nvtripy.frontend import wrappers
from nvtripy.frontend.constraints import GetInput, GetReturn, OneOf




@export.public_api(document_under="operations/functions")
@wrappers.interface(
    input_requirements=OneOf(GetInput("input").dtype, [dt.float32, dt.float16, dt.bfloat16]),
    output_guarantees=GetReturn(0).dtype == GetInput("input").dtype,
)
def cos(input: "nvtripy.Tensor") -> "nvtripy.Tensor":
    """
    Computes the elementwise cosine of the elements of the input tensor.

    Args:
        input: The input tensor.

    Returns:
        A new tensor of the same shape as the input tensor.

    .. code-block:: python
        :linenos:

        input = tp.arange(3, dtype=tp.float32)
        output = tp.cos(input)

        assert tp.allclose(output, tp.Tensor(np.cos(cp.from_dlpack(input).get())))
    """
    return op_utils.create_op(Cos, [input])