How do you make this code created for a 2*2 matrix work for a N*N matrix

Gauss Elimnation The methods mentioned earlier, such as matrix inversion, left division etc. works fine for a 2x2 or a 3x3 matrix, the computational time for larger nxn renders these methods useless. In such cases we use either iterative techniques (not discussed in this course) or a technique known as Gauss elimination. See attached handwritten notes. 1 clear all 2 A-11 1 2:2 4 3; 36 5 a SA 22 3; 2 32 4 2 5 6 for k1:2; Spivot riumber 9m A(i,k)/A(k, k) 10. b(i)-b ( i ) m*t1(k)