If you're sure that people reading your code have that association with n, m, and k, then the same line of reasoning used for i, j, and k applies. But since it's impossible to control your audience - teams change over time, etc - I wouldn't be that confident. In my experience, when programmers use n it's to refer to "the number" within some lexical scope. That would be my default expectation, and I would expect the same of the average reader.
If you're sure that people reading your code have that association with
n,m, andk, then the same line of reasoning used fori,j, andkapplies. But since it's impossible to control your audience - teams change over time, etc - I wouldn't be that confident. In my experience, when programmers usenit's to refer to "the number" within some lexical scope. That would be my default expectation, and I would expect the same of the average reader.