find the condition number of a matrix in matlab

To find the condition number of a matrix in MATLAB, you can use the cond function. Here is an example:

main.m
% Create a matrix
A = [1 2; 3 4];

% Calculate the condition number
condNumber = cond(A);

% Display the result
disp(['The condition number of matrix A is: ', num2str(condNumber)]);
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The cond function calculates the condition number of a matrix by default using the 2-norm condition number. You can also specify a different norm by providing an additional argument to the cond function. For example, to calculate the infinity norm condition number, you can use cond(A, inf).