create a code for l2norm in matlab

Here is the code for calculating L2-norm of a vector in MATLAB:

main.m
v = [1, 2, 3, 4, 5]; % Sample vector
l2norm = norm(v);
disp(l2norm);
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In this code, a sample vector v is defined and then norm() function of MATLAB is used to calculate the L2-norm. The calculated L2-norm is then printed on the console using disp() function.

Note: The norm() function can also be used to calculate other types of norms like L1-norm, max-norm, etc. For example, to calculate L1-norm instead of L2-norm, replace the norm() function with norm(v, 1) in the code.