A method of tensor.

the sum of a list of tensors, over all of them or along axes

Syntax

T = T.sum()

The sum of all tensors.

T = T.sum(axis=1)

Along the second axis, MATLAB’s sum(T, 2).

T = np.sum(T, axis=(0, 1), keepdims=True)

NumPy’s sum, the axes kept.

Description

Without an axis the whole list is summed, where MATLAB sums along the first non singleton dimension. NumPy’s np.sum(T) and np.sum(T, axis=1) call it.

Input

T tensor

Keywords

keyword default description
axis None the axis or tuple of axes of the list to sum along
dtype None NumPy’s argument, refused unless None
out None NumPy’s argument, refused unless None
keepdims False keep the summed axes with length one

Output

T tensor, the sum

See also

tensor.mean

MATLAB’s tensor.sum

source

Citing this page. This page is part of the documentation of MTEX, a free and open source MATLAB toolbox for analyzing and modeling crystallographic textures. It was written by The MTEX Developers and is published at https://mtex-toolbox.github.io/tensor.sum_py.html. If you use MTEX, or reuse text or figures from this page, in your research, please cite

F. Bachmann, R. Hielscher, H. Schaeben: Texture Analysis with MTEX - Free and Open Source Software Toolbox, Solid State Phenomena 160 (2010), 63-68. 10.4028/www.scientific.net/SSP.160.63

BibTeX 
@article{bachmann2010mtex,
  author  = {F. Bachmann and R. Hielscher and H. Schaeben},
  title   = {Texture Analysis with MTEX - Free and Open Source Software Toolbox},
  journal = {Solid State Phenomena},
  volume  = {160},
  pages   = {63-68},
  year    = {2010},
  doi     = {10.4028/www.scientific.net/SSP.160.63},
  url     = {https://doi.org/10.4028/www.scientific.net/SSP.160.63}
}

Other papers describing specific MTEX methods are listed under Publications — please cite the one that best fits your application. The MTEX source code is licensed under the GNU General Public License v2.0; the text and figures of this documentation are licensed under CC BY 4.0, which permits reuse — including by automated systems — provided The MTEX Developers and this page are credited.