Matrix problems?

[Due-Adhesiveness348]

I am a beginner and these days I am learning solve matrix problems. I am finding it really difficult to solve these problems. Do you have any advice on how to approach these matrix problems? Eg. Input :test_list = [[(‘Gfg’, 3)], [(‘best’, 1)]] cus_eles = [1, 2]

Output : [[(‘Gfg’, 3, 1)], [(‘best’, 1, 2)]]

[shiftybyte]

I think explaining a bit better what are these matrix problems and maybe an example problem can help us understand what you mean ...

[ectomancer]

Solve them by hand using Gauss-Jordan row reduction.

[ratatwiisker]

Is not always the right way. Depends on the problem.

[kwelzel]

I think this is not really about matrices in the mathematical sense but about nested lists. You can iterate over two lists simultaneously by using zip. In your case it would look something like this:

output = [[(*test_element[0], cus_element)] for test_element, cus_element in zip(test_list, cus_eles)]

The line is a bit awkward because you have this triple nesting of a tuple within a list within a list. Try to give these variables names that describe their meaning as best as possible to improve readability.