Use Matlabs built in funcition to create an Identiy matrix o

Use Matlab\'s built in funcition to create an Identiy matrix of size 9 times 9 multiply it by a value sigma squared and give it a variable name, P. 7. Use Matlab\'s built in functions to best process the following A and B matrices

Solution

Question 7:

Take the inverse of a square matrix A: Ainv = inv(A); or Ainv = A^(-1);

Get the number of rows of matrix A and set it equal to r: r = size(A,1);

The maximum value in a matriz A: Value = max(A(:));

Each element of C is the product of each element of A and B: C=A.*B

C is the product of A and B, where the matrices are square. C = A*B;

x is the least-square solution of y=A*x: x = inv(A)*y; or x = y/A;

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