Operating on X AND Y simultaneously

[Mignard]

Hi,

When operating on X or Y, this is done immediately. I'd like to change both X and Y with something like X_new = F(X_old, Y_old) and Y_new = G(X_old, Y_old). Since the X_old is lost after operating on X, this can't be done (and the functions might be too complex to adapt G with X_new). So a window dialog proposing the operation on X and Y in the same window and operating on the current X and Y would do the work in a single generation on both coordinates. Is that really impossible ?

[DPlotAdmin]

Is that really impossible?

In the current version - yes, unless you can easily invert either F or G.

Good suggestion, though. I'll look at adding this in a future release.