drawing a circle

please help i need to draw a green circle of radius 0.8 centered at x =2 , y=1.5 and display the result with the correct aspect ratio that is as a circle not an ellipse

then i need to fill the circle with gray and mark the center of the circle with a black X

Answer 1

[Image Analyst]

Several methods are listed in the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_create_a_circle.3F

Make sure you set "axis square" or "axis equal" and call "hold on" before you call text() or plot() to put on the "X".

[lowcalorie]

can you please help with writing the code i need it ASAP

[Oleg Komarov]

Have you checked the link? It has code examples.

Also do NOT double post.

Your post is NOT an emergency:

http://www.mathworks.com/matlabcentral/answers/29922-why-your-question-is-not-urgent-or-an-emergency

[Walter Roberson]

You do not actually need "hold on" before using text() or line() or patch() or a small number of other primitive calls. However, plot() is not a primitive call and you _do_ need "hold on" before using it to overlay data on the same axes.

Answer 2

[Chad Greene]

With circles

circles(2,1.5,0.8,'facecolor','green'); 
axis equal