This can't always be done in general, and even if it can it's usually really ugly. For example, sin(sin(y) + y) = x^5 - x + 1.
There are other algorithms to do this kind of implicit plotting. On Apr 23, 2007, at 11:25 AM, Timothy Clemans wrote: > > Do we just create a function based on the equation in question or in > the case of the equation of circles two functions and just plot the > function(s)? > > On 4/23/07, Bobby Moretti <[EMAIL PROTECTED]> wrote: >> In terms of features, something comparable to Apple's grapher >> application >> would be nice. Specifically, if you give, say, a polynomial in two >> variables, it should automagically do implicit plotting. I think >> that having >> dead simple implicit plotting could be a huge selling point for SAGE. >> >> ~Bobby >> >> On 4/23/07, William Stein <[EMAIL PROTECTED]> wrote: >>> >>> >>> On 4/23/07, Timothy Clemans <[EMAIL PROTECTED] > wrote: >>>> What is the plan to support plotting of equations, especially ones >>>> like x^2 + y^2 == 1 which is y == +- sqrt(-x^2 + 1) and 6*x + >>>> 4*y == 9 >>>> which is y == -6/4*x + 3/2? >>> >>> I don't have a good plan yet. Thought out suggestions for an >> implementation >>> strategy are welcome. Please email the list. This will be after >>> sage-2.5 is released though. >>> >>> William >>> >>> >>>>> >>> >> > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
