Plotting 2D-Many on One Page

How to draw three graphs on the same page?

x=0:0.1:(4*pi);
y=sin(x);
v=cos(x);
z=tan(x);
subplot(3,1,1)
plot(x, y)
subplot(3,1,2)
plot(x, v)
subplot(3,1,3)
plot(x, z)




How to place graphs in columns?

x=0:0.1:(4*pi);
y=sin(x);
v=cos(x);
z=tan(x);
subplot(3,2,1)
plot(x, y)
subplot(3,2,4)
plot(x, v)
subplot(3,2,6)
plot(x, z)