search for the smallest value in each column of a matrix in matlab

You can use the min function in MATLAB along with specifying the dimension you want to operate on to find the smallest value in each column of a matrix. Here's an example:

main.m
% Create a sample matrix
A = [5, 3, 7;
     2, 8, 4;
     1, 6, 9];

% Find the smallest value in each column
minValues = min(A, [], 1);
disp(minValues);
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In this example, min(A, [], 1) finds the smallest value in each column of matrix A and stores the results in a row vector.

Make sure to replace the sample matrix A with your actual matrix.