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Results tagged with list-manipulation
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user 46254
Questions on the manipulation of List objects in Mathematica, and the functions used for these manipulations.
2
votes
On elegant use of Inner and Outer on tensors
Take care!! With the instruction:
Total[Outer[#1.#2.#1 &, TensorTranspose[W, {3, 2, 1}], R, 2, 1], {3}]
you are effectively doing:
Transpose[w].r.Transpose[w]
If you really want to do:
Transp …
- 173
5
votes
How to group elements of a tuple into groups of 6 elements each?
You can first define a 3D matrix (dimensions 6 x 8 x 8) with the appropiate coefficients:
matTotal = {{{1, 0, 0, 0, 0, 0, 0, 0}, {0, 1, 0, 0, 0, 0, 0, 0}, {0,
0, 1, 0, 0, 0, 0, 0}, {0, 0, 0, 1, 0, 0 …
- 173