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Sascha, The following is a link to download a Mathematica UnitsHelper application. Its main palette has drop down menus for all the Mathematica physical constants, also all the units sorted alphabetically or by magnitude and that will paste into...
Thanks Adam, that explains it. It was not appropriate for me to use FindInstance in that way in that case. However it does show that form of Exists in the details for FindInstance, but the example does have free variables. And the Exists page does...
Here are some of my ideas regarding preferences in style, which I believe are discordant with some of the current Wolfram practice. Style is a matter of taste so many may differ from my suggestions but I do try to give reasons. Some suggestions may...
I think the standard way to do this is to create an init.m file in the FrontEnd/Kernel folder. Then in the init.m file you read in all the packages that make part of the application and do anything else you may need to do as part of the initiation.. ...
You might look at ContourPlot with the RegionFunction Option.
Andrea, I much prefer DynamicModule and the use of the second argument of Dynamic than the Manipulate statement, which I haven't used for years. The Presentations application has a section on using DynamicModule in the context of plane geometry...
Use Graphics. If you're just drawing lines and circles you will never have to use Show or Plot, Graph is almost an entirely different subject. Use the Text statement for labeling. You can just draw one thing after another. Another useful set of...
Ian, would you settle for having a palette to paste in the units in a Mathematica expression? Or being able to quickly generate a custom palette that has the units for a particular problem type? I have an application called UnitsHelper. It's a...
Juan, I'm not completely certain what I'm suggesting will help you, but there is a chance. If what I write is all nonsense then ignore it. You haven't specified to me everything clearly enough, but I would say that if you are adding one chemical unit...
Werner, in my opinion most users of Mathematica can do everything they need with desktop Mathematica and Workbench used solely for adding documentation pages. Yes, there may be some projects that employ dozens of programmers with huge budgets and...