How to efficiently implement a program that performs operations on mathematical matrices?

Question

Programming

Good day friends!
Now I want to write a program that performs operations on matrices. At first, I will manage with primitive operations (addition, subtraction, division, multiplication). I would like to learn from already experienced people how it is still worth representing the input and output data (in what form [linear lists, arrays, etc.]). I would also like to know if you had a similar problem, how did you solve it.

Answer 1

I would first make sure that the existing linear algebra libraries are not suitable for you.

Answer 2

If you play around, then for a start there will be more abstractions.
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