please add more cases.
This user (ALBERT ALEXANDER STONIER) appears to have gamed the system, with fraudulent "likes" of this unremarkable solution submitted by 'sock-puppet' accounts. —DIV
Given area find sides
Sum the numbers on the main diagonal
Determine the length of a string of characters
If you have matrix A, create matrix B using matrix A as an "element"
Vector with a repeated entry
Given the variable x as your input, multiply it by four, then divide it by two. Then put the result in y.
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