On Monday, July 16, 2012 12:49:32 AM UTC+2, The Doctor (Michael) wrote: > > Yes,that is correct Jason.Thanks. > > i have another question along the same vein. I need to plot a polar region > between 2 circles of radius 1 and 2, from pi/4 <= theta <M= 3*pi/4. Here is > what I tried, but I got a bunch of errors: > > a=polar_plot(1,2,(pi/4,3*pi/4),ymin=-2,color='black', > fill=True,fillcolor='blue',axes_labels=['x','y'],fontsize =16) > > Thanks, > -Michael D >
l1=[(cos(phi),sin(phi)) for phi in srange(n(pi)/4,3*n(pi)/4,0.01)] l2=[(2*cos(phi),2*sin(phi)) for phi in srange(n(pi)/4,3*n(pi)/4,0.01)] l2.reverse() p=polygon(l1+l2) l=line(l1+l2+[(cos(n(pi)/4),sin(n(pi)/4))],color='black') (p+l).show(xmin=-2,xmax=2,ymin=-2,ymax=2,axes_labels=['x','y'],fontsize =16) > > On Thursday, July 12, 2012 11:58:35 PM UTC-4, Jason Grout wrote: >> >> On 7/12/12 6:22 PM, The Doctor (Michael) wrote: >> > >> myArc=polar_plot(4,(0,3*pi/2),ymin=4,fill=true,fillcolor='blue',axes_labels=['x','y'],fontsize >> >> >> > =16) >> >> Your ymin is 4. Shouldn't it be -4? >> >> Thanks, >> >> Jason >> >> >> >> -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
