Apparently it isn't possible to access components in a workbook from procedures from a library.

Just wanted to know if that is correct, or if I am missing something here.

E.g. this procedures should delete contents of TextAreas with endings defined in a list of variables. Works nicely in the workbook, but when putting the procedure in a library, it apparently doesn't work anymore.
 

Download ResetCombobox.mw

Apparently a colon within a string causes some issues when generating a XMLElement.

Didn't find anything in Maple Help about that though.

Download xmlns.mw

Is there any way to convert a variable name to a string?

In that example, the content of the variable is converted to string, not the name of the variable.

Download convertstring.mw

Is there any equivalent to Excel function arctan2?

This function takes x and y values, and returns values from -Pi to +Pi. In that way one can easily get the x and y values of an angle with correct signs.

Are there any examples showing how to plot multiple items in one plot?

• What I have started with is to put a Plot component in my sheet, so that I can use that by its name.
• Next thing on the list was to generate different plot objects, by assigning each of them to a variable.
• To plot the whole bunch, I collected all the items I want to plot in a list
• And plotted them by SetProperty("MyPlotcomponent", value, display(plotlist))

I wonder if this is the best way to do it. Especially when adding more stuff afterwards, would it be possible to just add something to the plot component?

Do I need plot components at all?