How can i draw a circle and how to draw arrow line?

I wanna draw a circle that picture (with -- line ). I used so many codes but i couldn't. Xm, Ym centre of circle and t is grad angle. I wrote some codes and user will some parameters and X,Y,Xm,Ym,t.... will found. I draw some line but i need other lines and text on grap. Is there someone who can help?

[Rik]

Have a read here and here. It will greatly improve your chances of getting an answer.

You can use the Euler identity: (rho*cos(theta),rho*sin(theta) follows a circle around the origin with radius rho. You can easily transpose that.

[Mehmetcan Topal]

So how can i write line's name, and arrow line symbol?

[Rik]

quiver and text are the two functions you are looking for.

Answer 1

[Nicolas Schmit]

https://www.mathworks.com/help/matlab/ref/line.html

https://www.mathworks.com/help/matlab/ref/quiver.html

Answer 2

[Image Analyst]

You can use the annotation() function to draw arrows, and viscircles() or rectangle() to draw circles.

Or see the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_create_a_circle.3F

[Mehmetcan Topal]

Thank you, i got it.