# Source code for mars.tensor.arithmetic.square

#!/usr/bin/env python
# -*- coding: utf-8 -*-
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#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
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import numpy as np
from ... import opcodes as OperandDef
from ..utils import infer_dtype
from .core import TensorUnaryOp
from .utils import arithmetic_operand
@arithmetic_operand(sparse_mode="unary")
class TensorSquare(TensorUnaryOp):
_op_type_ = OperandDef.SQUARE
_func_name = "square"
[docs]@infer_dtype(np.square)
def square(x, out=None, where=None, **kwargs):
"""
Return the element-wise square of the input.
Parameters
----------
x : array_like
Input data.
out : Tensor, None, or tuple of tensor and None, optional
A location into which the result is stored. If provided, it must have
a shape that the inputs broadcast to. If not provided or `None`,
a freshly-allocated array is returned. A tuple (possible only as a
keyword argument) must have length equal to the number of outputs.
where : array_like, optional
Values of True indicate to calculate the ufunc at that position, values
of False indicate to leave the value in the output alone.
**kwargs
Returns
-------
out : Tensor
Element-wise `x*x`, of the same shape and dtype as `x`.
Returns scalar if `x` is a scalar.
See Also
--------
sqrt
power
Examples
--------
>>> import mars.tensor as mt
>>> mt.square([-1j, 1]).execute()
array([-1.-0.j, 1.+0.j])
"""
op = TensorSquare(**kwargs)
return op(x, out=out, where=where)