for A=0.1:0.1:0.4; % A is 0.1,0.2,0.3 and 0.4 i.e 4 loops or 4 times

C=linspace(10,40,4);%
D =linspace(0.1,0.1,4); %
E = [1 1 1 1]; %
F = [2 2 2 2]; %

G = A/0.001;
K = [20 20 20 20];
N = [30 30 30 30];

R =A./0.003; %%%

Tope = E+(F-4.*(((K+N)./(R+G)).^2).*(D) +0.5).*(sin((pi/180)*C)).^2
end


My question is that how can I save the results in lets say, Tope1,Tope2,Tope3,Tope4 for the first,second,third and fourth iterations respectively?

If I type Tope at the command window, I can results for all 4 iterattions, but I can only retrieve the last one. Thanks a lot.

I think you're looking for something like this...

A = 0.1 : 0.1 : 0.4;
G = A/0.001;
R = A/0.003;
C = linspace(10, 40, 4);
D = 0.1;
E = 1;
F = 2;
K = 20;
N = 30;
Tope = E + (F - 4.*(((K+N)./(R+G)).^2).*D + 0.5).*(sin((pi/180).*C)).^2


You're getting a row vector, where
Tope = [Tope(1) Tope(2) Tope(3) Tope(4)]


See another example:
http://www.matrixlab-examples.com/iteration.html