let the real function f(x)=(2-sqrt(x+1))/(x-3) Sage has no difficulty finding the limits at x=-1 and x=3. However, I am unable to get plot to detect these singularities : plot((2-sqrt(x+1))/(x-3),[x,-1,6],figsize=4,detect_poles=True) gives me a continuous curve between -1 and 6 with no marking whatsoever at -1 and 6.
Can someone suggest a more-or-less automated way to get 1) a curve segment between abcissae -1 and 3 with some marker excluding the point at abcissa 3? 2) a curve segment between 3 an 6 with a marker at abcissa 3 I want to emphasize that the function is not defined at 3 and (for real values), not defined for x<0 Bonus points (just kidding :-) for the representation of the complex (multivalued) function f(z)=(2-sqrt(z+1))/(z-3) where sqrt(t) is a root r of r^2=t.... -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/groups/opt_out.
