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18 years, 126 days

Professor of Economics SUNY Stony Brook I use Maple for Research: To test theoretical modelling ideas with various kinds of general equilibrium deterministic and stochastic models in Macroeconomics and Urban Economics. Graduate classes: In Macroeconomics and Econometric classes. Undergraduate classes: In Urban Economics and Computational Methods classes. Note: You can communicate with me in German and French as well as English.

MaplePrimes Activity

These are questions asked by TomM

Why does MapletViewer launch the Maplet Splash Screen and then pop up a box saying it has an error launching the Maplet spash screen? As my previous question stated, it also will not run the maplet, popping up another error box as "explanation".

My maplet runs perfectly correctly and as expected when I run it directly from the worksheet.

However, when I export the worksheet to a .maplet file, it will not run and only gives the error:
At line 135, syntax error: reserved words `quit`, `done`, or `stop` unexpected.

According to wordpad, line 135 of the .maplet file is the last line of both the .maplet file and of the worksheet. It contains the statement:

Maplet[Display](<maplet name>);

There are no `quit`, `done`, or `stop` words anywhere visibly in the worksheet.

What is happening and how do I get the maplet to run?

What is the difference between the "old" Maplet format and the "new" Möbius Project App format? Is the Möbius Project just a new name for writing Maplets? Is the programming different; are the mechanics of putting the file in a form to be used by students different; does the file containing the program that can be directly run by students have a different format and extension; are the kinds of things students see different? Is the Maplets function on the way to being discontinued in favor of the Möbius Apps?

I cannot find anything in the documentation for either format that relates it to the other format, although the general description of the output seems entirely the same.

There is a command UsingContexts( ), however, there seems to be no list of all the available contexts or what units each of them relate to. At the moment, the only way to find the recognized contexts seems to be to go through all the units help pages one by one and look for the contexts that are mentioned. This is clearly horribly inefficient.

In addition, there seems to be no system of units readily useful for business and economics problems.

If I put in the randomize(#) command with the same actual number each time before generating a sequence of random numbers,  I would expect to get the same sequence of results from repeated use of  

round( Generate(distribution(DiscreteUniform(5,10))) )

each time. Actually, I get completely different sequences of numbers.

This also happens with the alternative method of SetState in RandomTools

This is not only annoying...

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