ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Sun, 01 Mar 2020 08:57:21 +0100implicit_plot leaves out pointshttps://ask.sagemath.org/question/50130/implicit_plot-leaves-out-points/I'm trying to use `implicit_plot` to graph nullclines for a competition model, but only some parts of the nullclines are plotted. I have:
var("N,P")
Nprime(N,P) = N*(3-N-2*P)
implicit_plot(Nprime, (N,0,3), (P,0,3))
Clearly, this function is 0 at all points where N=0, but the graph only shows them up to P=3/2. Is there anything I can do to avoid this or is it a bug in `implicit_plot`?
Sun, 01 Mar 2020 08:36:16 +0100https://ask.sagemath.org/question/50130/implicit_plot-leaves-out-points/Comment by FrédéricC for <p>I'm trying to use <code>implicit_plot</code> to graph nullclines for a competition model, but only some parts of the nullclines are plotted. I have:</p>
<pre><code>var("N,P")
Nprime(N,P) = N*(3-N-2*P)
implicit_plot(Nprime, (N,0,3), (P,0,3))
</code></pre>
<p>Clearly, this function is 0 at all points where N=0, but the graph only shows them up to P=3/2. Is there anything I can do to avoid this or is it a bug in <code>implicit_plot</code>?</p>
https://ask.sagemath.org/question/50130/implicit_plot-leaves-out-points/?comment=50131#post-id-50131boundary effect, as
implicit_plot(Nprime, (N,-1,3), (P,0,3))
works fineSun, 01 Mar 2020 08:57:21 +0100https://ask.sagemath.org/question/50130/implicit_plot-leaves-out-points/?comment=50131#post-id-50131