How to hold on values in ''Vector" with the continuity of the loop

I have this example:

for t=20:10:30

for i=900

a=t+i

end

end

I want result to be (Vector a):

a=

920

930

Answer 1

[Voss]

t = 20:10:30;
i = 900;

a = t.' + i

a = 2×1

920 930

[abdullah al-dulaimi]

by Loop

[Voss]

Or, if you must use loops:

t_all = 20:10:30;
i_all = 900;

nt = numel(t_all);
ni = numel(i_all);

a = zeros(nt*ni,1);

idx = 1;
for t = t_all
    for i = i_all
        a(idx) = t+i;
        idx = idx+1;
    end
end

disp(a)

   920
   930

Or:

t = 20:10:30;
i = 900;

nt = numel(t);
ni = numel(i);

a = zeros(nt*ni,1);

idx = 1;
for t_idx = 1:nt
    for i_idx = 1:ni
        a(idx) = t(t_idx)+i(i_idx);
        idx = idx+1;
    end
end

disp(a)

   920
   930

Or:

t = 20:10:30;
i = 900;

nt = numel(t);
ni = numel(i);

a = zeros(nt*ni,1);

for t_idx = 1:nt
    for i_idx = 1:ni
        a((t_idx-1)*ni+i_idx) = t(t_idx)+i(i_idx);
    end
end

disp(a)

   920
   930