How do I fill the color in the block? This is the function I'm using.

hold on
x = [4 5 5 4 4]
y = [13 13 12 12 13]
plot(x,y,'y')
axis equal
hold off
hold on
x = [4 4 5 5 4]
y = [12 11 11 12 12]
plot(x,y,'g')
axis equal 
hold off
hold on
x = [4 4 5 5 4]
y = [11 10 10 11 11]
plot(x,y,'g')
axis equal
axis([0 9 0 13])

Answer 1

[KSSV]

Read about patch.

hold on
x = [4 5 5 4 4]

x = 1×5

4 5 5 4 4

y = [13 13 12 12 13]

y = 1×5

13 13 12 12 13

patch(x,y,'y')
axis equal
hold off
hold on
x = [4 4 5 5 4]

x = 1×5

4 4 5 5 4

y = [12 11 11 12 12]

y = 1×5

12 11 11 12 12

patch(x,y,'g')
axis equal 
hold off
hold on
x = [4 4 5 5 4]

x = 1×5

4 4 5 5 4

y = [11 10 10 11 11]

y = 1×5

11 10 10 11 11

patch(x,y,'g')
axis equal
axis([0 9 0 13])