2. function F = my_function(x,y,z) if z == 1 F = max(x,y); elseif z == 2 x1 = sort(x); y1 = sort(y,'descend'); F = x1.* y1; elseif z == 3 n = 0 : 0.01 : 3.14 X = sin(n); figure, subplot(2,2,2),plot(X); F = x +y; end 1.1 a = [3 5 7 9 11 13]; b = 1 ./ a; sum(b) 1.2 sum = 0; for i = 3 : 2 : 13 sum = sum + 1/i; end