finding solutions in matlab within interval for multiple variables

My r_o varies between 12 and 15; anf r_i between 6 and 9;

I need to have a graph velocity VS two radii. The radii are not dependeent on each other, so there might be any combination.

How can I do so?

% Given
W_g = 500;
W_t = 1000;
delta_x = 60;
g = 32.2;
r_i = 6:0.3:9;
r_o = 12:0.3:15;

% Equation for both gliders
V_g_c = sqrt(2*W_t*delta_x*g.*r_o.^2/(W_t.*r_i.^2+W_g.*r_o.^2));

%Plot 
plot(V_g_c, r_i, 'Linewidth',2);

Thank you in advance!

Answer 1

[Sibi]

W_g = 500;
W_t = 1000;
delta_x = 60;
g = 32.2;
r_i = 6:0.3:9;
r_o = 12:0.3:15;
V_g_c = sqrt((2*W_t*delta_x*g.*(r_o.^2))./(W_t.*(r_i.^2)+W_g.*(r_o.^2))); 
plot(V_g_c, 'Linewidth',2);

if you want all combinations

W_g = 500;
W_t = 1000;
delta_x = 60;
g = 32.2;
r_i = 6:0.3:9;V_g_c=[];
for r_o = 12:0.3:15
    k=(sqrt((2*W_t*delta_x*g.*(r_o.^2))./(W_t.*(r_i.^2)+W_g.*(r_o.^2))));
V_g_c = [V_g_c k']; 
end
plot(12:0.3:15,V_g_c ,'Linewidth',2);

[Kseniia Kudriavtceva]

Thank you so much!!!!!!