mindsponge.common.vecs_sub

mindsponge.common.vecs_sub(v1, v2)[source]

Subtract two vectors.

\[\begin{split}\begin{split} &v1=(x1,x2,x3) \\ &v2=(x1',x2',x3') \\ &result=(x1-x1',x2-x2',x3-x3') \\ \end{split}\end{split}\]

Parameters

v1 (Tuple) – input vector 1 \((x, y, z)\), data type is scalar or Tensor with same shape.
v2 (Tuple) – input vector 2 \((x, y, z)\), data type is scalar or Tensor with same shape.

Returns

Tuple. Length is 3, \((x', y', z')\) , data type is scalar or Tensor with same shape as v1.

Supported Platforms:: Ascend GPU CPU

Examples

>>> import numpy as np
>>> from mindspore import Tensor
>>> from mindspore import dtype as mstype
>>> from mindsponge.common.geometry import vecs_sub
>>> x= Tensor(np.ones(256), mstype.float32)
>>> y= Tensor(np.ones(256), mstype.float32)
>>> z= Tensor(np.ones(256), mstype.float32)
>>> result=vecs_sub((x,y,z),(x,y,z))
>>> print(len(result))
>>> print(result[0].shape)
>>> print(result[1].shape)
>>> print(result[2].shape)
3
(256,)
(256,)
(256,)