find the first three smallest values in a vector in matlab

main.m
vec = [6, 2, 8, 1, 3, 9, 4, 5, 7]; % example vector
sorted_vec = sort(vec); % sort vector in ascending order
first_three = sorted_vec(1:3); % take first three elements
disp(first_three); % display the result
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main.m
1     2     3
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