Help me draw the region in matlab ?

For the region ,draw the region D and color the region D. a) D : x^2 + y^2 = 2x, x^2 + y^2 = 2y b) x^2 + y62 <= 2y, 0<=x<=y*sqrt(3) thanks very much.

[Image Analyst]

Is this homework?

[Nguyen Trong Nhan]

for this homework, I have never seen before

Answer 1

[Image Analyst]

Why don't you solve the equation for y, then use linspace() to create a vector for x? Plug that vector into your equation to get values for y, and then plot them with plot(x, y, 'ro-') and see what you have and what regions get formed. Then use patch() or fill() to color the region.

[Nguyen Trong Nhan]

And if I want to draw a triangle A(1,1) B(2,3) C(-1,2). Could I do by commands you give me above ?

[Nguyen Trong Nhan]

Oh, I have done it and I see the problem. thanks you very much.

[Image Analyst]

You could use plot(), which you probably did. Can you mark the Answer as Accepted to close it out?