Determinant of a second order tensor

A second order tensor S its inverse is S^-1. Using matlab randi function to gen a square (NxN) matrix S with components between 0 to 9 and N=3. Calculate the determinant by randomly picking one of the ith row of the matrix. Using a loop to multiply each jth element of the selected ith row by its minor i.e, the determinant of the (N-1xN-1) matrix obtained deleting the ith row and the jth column from matrix S(i,j).If i+j is odd multiply each product by -1 use matlab function mod(x,y) with x=i+y and y=2 to determine the sign of the product.Sum all product.

[Steven Lord]

This sounds like a homework assignment. If it is, show us the code you've written to try to solve the problem and ask a specific question about where you're having difficulty and we may be able to provide some guidance.

If you aren't sure where to start because you're not familiar with how to write MATLAB code, I suggest you start with the free MATLAB Onramp tutorial to quickly learn the essentials of MATLAB.

If you aren't sure where to start because you're not familiar with the mathematics you'll need to solve the problem, I recommend asking your professor and/or teaching assistant for help.

[Ahmar Yanis]

S = randi([0,9],3,3)

% Random picking the row

k = randi(size(S,1));

for i =K

for j=1:size(S)

This is the part which i dont understand

#Using a loop to multiply each jth element of the selected ith row by its minor i.e, the determinant of the (N-1xN-1)

end

end

[Torsten]

If you don't understand, you should read this article:

https://en.wikipedia.org/wiki/Minor_(linear_algebra)