2
$\begingroup$

Bug introduced in 12.0 or earlier and fixed in 13.2 or earlier


I notice that after a call to VectorDensityPlot the variables used are assigned to random real values. This doesn't seem to happen with VectorPlot and I can't find a notice of bug. It's been mentioned in other posts (e.g. Bug in VectorFieldPlot[] with InterpolatingFunction[]?). Is this a know bug? Does it affect all versions (I'm on 11.3)? Is there a suggested Block? Evaluator?

ClearAll["Global`*"]
f[xy_] := {xy[[1]]*xy[[1]] - xy[[1]] - xy[[2]]*xy[[2]], 
  2 xy[[1]] xy[[2]] - xy[[2]] + Pi}

{x, xa, ya}
VectorPlot[f[{xa, ya}] - {xa, ya}, {xa, -2, 3}, {ya, -2, 2}, 
 VectorScale -> Medium, VectorPoints -> Fine]
VectorDensityPlot[f[{xb, yb}] - {xb, yb}, {xb, -2, 3}, {yb, -2, 2}, 
 VectorScale -> Medium, VectorPoints -> Fine]
{x, xa, ya, xb, yb}

xb,yb assigned after VectorDensityPlot

$\endgroup$
1
  • 2
    $\begingroup$ I was able to reproduce it in 12.0 but NOT in 13.2. I would call that a bug. $\endgroup$
    – bmf
    Feb 5, 2023 at 0:14

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.