About refactoring

Question

My matrix calculation code is not very easy to read.
Addition and Subtraction are easy.
But Multiplication and Division are able to be easy by refactoring.
Please read my matCalc 4*4 code, and refactor.

Do you use recursive?

Answer 1

Thank you for comments.

And in this code, the index of the matrix is right or not?

Please confirm the index number.

OR, another method exists?

Answer 2

correct number or wrong number

Answer 3

mathematically

Answer 4

In 4*4 Matrix, with Cofactor matrix and sarrus rule , you make inverse of a matrix. This is unpopular?

Answer 5

ok,,, someday I will study pivoting technique and LU decomposition once again. I have heard These terms once.