---

M = [2 -3 -5;
     6 -2  4;
     3 -1  1]

s = sum(M)

s2 = sum(M,2)

MC = sort(M)

MR = sort(M,2)

mx = max(M)

mn = min(M)

mxl = max(M,[],2)


mnl = min(M,[],2)

A = round(10*rand(5)) - 6*ones(5)

p = max(sum(abs(A)))

q = sqrt(sum(sum(abs(A).^2)))

s = sum(sum(abs(A)))