Matlab code:
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a = [4 7; 2 6];
det_a = (a(1,1)*a(2,2) - a(1,2)*a(2,1));
s = size(a);
if det_a == 0 || s(1,1) ~= 2 || s(1,2) ~= 2
fprintf('Determinant of the provided matrix is zero or either size
of the matrix is not 2x2 hence inverse not possible')
else
a1 = [a(2,2) -a(1,2) ; -a(2,1) a(1,1)];
inv_a = (1/det_a)*a1
end
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Above code will use the direct method of finding inverse of an
2x2 matrix. If the matrix size is different than 2x2 or it is
singular code will give an message that provided matrix is not
correct.
Please provide the feedback.
