% let a = [[4, -1], [0, 2], [-5, y]] % what must be the least value of |y| so that ||a||∞, % the induced ∞-norm of a, is equal to 14? in matlab

main.m
a = [[4, -1]; [0, 2]; [-5, y]];
norm_a_inf = norm(a, inf);
y = ceil(norm_a_inf);
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