Two suggestions to improve Cantor's worksheet.

Alexander Semke Alexander.Semke at
Mon Oct 26 21:27:46 UTC 2015

> I'm not sure what you mean by this. You can already insert new
> expressions by using the context menu. (there are items for insert
> before this expression and insert after).
> Is this not sufficient for your use, or just not intuitive?
It's not flexible and fast enough. It's much easier to click between 
expressions to produce a new one then to go via the context menu. In text 
processing you don't go via the context menu if you want to add new letters 
between already existing letters  - you just click in the text and start 
typing at the place where you want to add new text. Similar for CAS, you click 
between two expressions, you set your cursor so to say, and then a new field 
for expression is produced when you start typing.
In this screenshot you can see the horizontal line between two expressions. 
Such a line indicates where your "expression cursor" currently is. If you 
start typing, a new input will be produced at this place:

Similarly it is solved in wxMaxima, too.

> Cantor currently offers the possibility of inserting items with rich
> text formatting. We do not offer any formatting
> options in the command entries itself, mostly in order to not
> interfere with the automatic syntax highlighting there.
> Do people really need formatting in the commands/results they produce,
> or is it sufficient if they can write annotated text in between
> different commands?
Yes, they do. Sometimes you want to annotate some important steps in the 
calculation by just coloring the corresponding block. Or you work with colors 
and different font sizes to separate different regions in a longer 
calculation, etc. Actually, the internal documentation of mathematica consists 
of many read-only notebooks (workbook in Cantor's speech) where one can see a 
lot of different formatting and grouping features that allow to produce such a 
documentation. All those features are available to the user in the notebook, 
too. Here is notebook with some basic formatting


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