On Sep 28, 10:38 am, Maurizio <maurizio.gran...@gmail.com> wrote: > Can't we take advantage of inheritance for this issue? I don't know > how far that can go, though, I'm not a programmer... > > Thanks > > Maurizio
I think this will cause headaches to non-programmers, if your idea of dependence does not agree with the computer's. Your idea is probably good for spreadsheet-like calculations, but maybe not for the large code cells now common in sage. For few large cells with complex code, the preparser might fail to find the correct dependence tree, but for you it's a trivial task. I think something like William proposed is more transparent. The GUI might allow you to mark dependent cells explicitely with keystrokes, clicks and commands. For example, you click on a cell to select it, then Control+click on the cell above to mark the current cell as dependent on the above, and the color of the cells border changes to reflect that. From now on, when you select a cell, that cell is blue, the ones it depends on are red, and the ones that depend on it are green. Or you can type control+shift+Enter, and a new cell appears below the current one that depends on it. Or you write chain(5) in one cell and get 5 cells afterwards, each dependent on the previous ones. But after messing around all you want, if you edit the source code, you'll just find a statement like %eval([4,5,6]) at the end of a cell, where [4,5,6] is the list of ids of the cells that depend on the current one, maybe a comment at the beginning like #depends 1 2 that lists the cells it depends on. And of course it's completely optional, you don't even have to know the possibility exists to use SAGE as you've done before. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
