Matlab function 2.22.10.07

function y=myfun1(x)
z=x+1;
y=z*2;

function y=myfun2(x)
if x>10
    y=99;
elseif x>0
    y=1;
else
    y=-1;
end

function y=myfun3(x)
switch x
    case 1
        y=9;
    case 2
        y=99;
    case 3
        y=999;
    otherwise
        y=0;
end

function y=myfun4(x)
for i=1:2:10
    for j=1:5
    y(i,j)=x;
    end
end