I am seeking any assistance on how to implement tensor manipulation in SMath. I wish to create rank-4 tensors as well as raise, lower, contract and coordinate transform rank-3 and rank-4 tensors. Any advice or suggestions would be greatly appreciated.
Thanks
Kerry Hinton

Hi,
Maybe this file can help you with the implementation of tensors of rank-3 and rank-4 on SMath:


Tensors-Rank3-Rank4.sm (143 KiB) downloaded 252 time(s).

Oscar

Here is an update of previous file.
Now a couple of functions for create r3 and r4 tensors were added and also functions for assign values to elements on a tensor.

enjoy!

Tensors-Rank3-Rank4 6abr2024.sm (177 KiB) downloaded 286 time(s).