plot a uniform flow

[x,y] = meshgrid(0:0.1:5,0:0.1:5);
alpha =10;
U=1;
startx = 0.1:0.1:5;
starty = ones(size(startx));
for i =1:length(x)
    for j=1:length(y)
        U=U+1;
        u(x,y)=U*cos(alpha*(pi/180));
        v(x,y)=U*sin(alpha*(pi/180));
        quiver(x,y,u,v)
        streamline(x,y,u,v, startx, starty)
    end
end

Answer 1

[VBBV]

[x,y] = meshgrid(0:0.1:5,0:0.1:5);
alpha =10;
U=1;
startx = 0.1:0.1:5;
starty = ones(size(startx));
for i =1:length(x)
    for j=1:length(y)
        U=U+1;
        u(i,j)=U*cos(alpha*(pi/180));  % use for loop indices
        v(i,j)=U*sin(alpha*(pi/180));
    
    end
end
figure
quiver(x,y,u,v)

use for loop indices

[Muhamed Ehab]

thank's alot