> > sage: def theta(dz): > ... angle=0; > ... if 0<=dz<2*r*cot(gangle) : angle= 2*arcsin(dz*tan(gangle)/2/r); > ... if 2*r*cot(gangle)<= dz < 2*2*r*cot(gangle) : angle= > 2*arcsin((dz-2*r*cot(gangle))/(cot(gangle)*2*r)) - pi; > ... if 2*2*r*cot(gangle)<= dz < 4*2*r*cot(gangle) : angle= > 2*arcsin((dz-2*2*r*cot(gangle))/(cot(gangle)*2*r)) - 2*pi; > ... if 0>=dz>-2*r*cot(gangle) : angle= 2*arcsin(dz*tan(gangle)/2/r); > ... if 2*r*cot(gangle)>= dz > -2*2*r*cot(gangle) : angle= > 2*arcsin((dz+2*r*cot(gangle))/(cot(gangle)*2*r)) - pi; > ... if 2*2*r*cot(gangle)>= dz > -4*2*r*cot(gangle) : angle= > 2*arcsin((dz+2*2*r*cot(gangle))/(cot(gangle)*2*r)) - 2*pi; > ... return angle; > ... > > then executing > > sage: find_root(erseno(x)==0,2,10,xtol=0.01)
Try to print erseno(x) it seems that your equation becomes 0.609368485026990==0 Robert -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
