Deletion of Matrix representation of tensors

Comment: viXra articles as sources? No, this goes against the principle that Wikipedia articles need to be based on information in |reliable, secondary sources
Stance: delete
Cited policy: Wikipedia:Verifiability (WP:V)

Comment: I agree there isn't much in the way of reliable sources given, a cursory Google Search did turn up https://www.tandfonline.com/doi/abs/10.1080/0020739840150604?journalCode=tmes20 an article in ''International Journal of Mathematical Education in Science and Technology'' but it seems to be locked behind a $50 paywall. In any case, I didn't see any secondary sources. D.Lazard suggested if anything is salvageable here it could be added to the Tensor article and I tend to agree, but, reference issues aside, most of the material seems too y for WP
Stance: delete
Cited policy: Wikipedia:What Wikipedia is not (WP:TEXTBOOK)