Thread Subject:

Hi

How can I plot an ellipse with 30 degree rotation.

"Lola" wrote in message <k72tds$j6v$1@newscl01ah.mathworks.com>...
> How can I plot an ellipse with 30 degree rotation.
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  Let 'a' and 'b' be the desired semi-major and semi-minor axes.

 t = linspace(0,2*pi);
 x = (a*cos(pi/6))*cos(t)-(b*sin(pi/6))*sin(t);
 y = (a*sin(pi/6))*cos(t)+(b*cos(pi/6))*sin(t);
 plot(x,y)
 axis equal

Roger Stafford