gkokovidis

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20 years, 291 days
Draeger Medical Systems, Inc.

 

 

Regards,
Georgios Kokovidis
Dräger Medical

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These are answers submitted by gkokovidis

The screenshot below shows core usage as Maple12 standard GUI is solving a diffential equation in a loop.  I noticed that the % figure stayed at 50.  This looked like the average between the two cores.  While one was at 60%, the other one would display 40%.  The dips in the usage of one core seemed to be mirror images of the other.  This is curious behavior, and I do not think it has anything to do with Maple.  This was done on a Dell Core 2 Duo Laptop, WinXP SP2.

 

Regards,
Georgios Kokovidis
Dräger Medical

Your example above takes less than 1 sec. on my laptop, which is not especially fast.  2 GHz w/ 512 Meg of RAM, WinXP.  This includes displaying the output. 

One point of interest thought.  I did this with Maple 9.52 and saved the worksheet.  I open it again and execute the code.  Same results.  Takes less than 1 sec.  Then I open it up with Maple 12 Standard Interface.  I execute the worksheet, and I start counting.  It takes about 9 seconds to display an answer, but the time function at the end of the worksheet displays something less that 1 sec.  This does not seem right.  The Classic Interface in Maple 12 takes about 1 sec. as well.  Standard Interface has "issues". 

Download 221_time.mws
View file details

 

Regards,
Georgios Kokovidis
Dräger Medical

Attached worksheet illustrating plot commands.  For more help on a command, highlight it and hit the F2 key (Standard Interface), F1 key (Classic Interface), or seach for it using the help browser.

Download 221_equationplot.mws
View file details
 

 

Regards,
Georgios Kokovidis
Dräger Medical

Start by reading the help files and running the examples that come with the geom3d package.  At the Maple prompt, type the following and hit the enter key, or use the help browser and look for geom3d, and then RegularPolyhedron.

>?geom3d[RegularPolyhedron]

 

Regards,
Georgios Kokovidis
Dräger Medical

Take a look at the following thread.  It might answer your question or help you make a Maple expression that fits your needs.

 

Regards,
Georgios Kokovidis
Dräger Medical

 

Do you know what your constants are, before you solve.  What about g1 and g2? 

 

 

 

 

Regards,
Georgios Kokovidis
Dräger Medical

Visit the Maple Applications Center, and take a look at some of the worksheets.  Try executing them, and see if you can modify them to fit your particular problem. 

 

Regards,
Georgios Kokovidis
Dräger Medical

Take a look at the help pages for RootOf, using the help browser, or by entering the command below. 

 

>?RootOf

 

Regards,
Georgios Kokovidis
Dräger Medical

Take a look at the help files for the "seq" command

>?seq

One example:

>seq(2500(1+ r/4)^(4*5),r=[6,8,10,12]);

 

Regards,
Georgios Kokovidis
Dräger Medical

There is a Maple Applications Center package that looks like something that will work  for you using version 9.5.  You can find it here.  You need to login and be registered in order to access this.  Although it was not written for v9.5, it will work.  There will be typesetting messages after every plot, but you will still be able to see every plot from the example worksheet that was provided.   I downloaded the zip file, extracted it into my temp/Maple directory, modified my .ini file so that it includes this directory, and then started Maple.  I opened the worksheet, and commented out the path at the top of the worksheet.  Then I ran the rest of the commands.  I did this with version 9.5, and I could see all of the plots.  Hope this helps.

 

Regards,
Georgios Kokovidis
Dräger Medical

Start by looking at the help file.  At the command prompt, type:

 

?int

 

There are 3 different ways of doing this below:

 

>restart:

 

>Int(((x^50+1)^(1/5))/(x^61),x)=int(((x^50+1)^(1/5))/(x^61),x);

 

or

 

>restart:

 

>Int(((x^50+1)^(1/5))/(x^61),x);

 

>value(%);

 

 or

 

>restart:

 

>int(((x^50+1)^(1/5))/(x^61),x);

 

 

 

Regards,

 

Georgios Kokovidis

 

Dräger Medical

David, instead of starting from scratch, and getting to the point where you are asking people for help with respect to code examples, my recommendation is to visit the Maple Applications center, and download some example worksheets.  Run them in Maple and see what the output is.  If you highlight a command, and hit the F2 key, it will bring up the help file for that command.  Then you can start modifying the code examples that you have executed and make them fit your particular problem.  You have to create a user name and passwork to retrieve code from the Applications Center.  Start here and see how far you can go. 

 

Regards,
Georgios Kokovidis
Dräger Medical

No, I have not reproduced it.  I noticed after your posting that the example with the function TDiff requires the TDtools toolbox.  It is missing from the share library.  The example files from 'chemeng'  that call "with(TDtools)" do not work.  Thanks for pointing this out.

 

Regards,
Georgios Kokovidis
Dräger Medical

There is an article here that deals with Differentiation of Arbitrary Sums.  You can find the functions that are used in the Maple share library, located here.  Once loaded you can take a look at some example worksheets.

>with(share);

>?share[chemeng]

The chemeng package was written by Ross Taylor, Clarkson University.

Take a look at thermo1_mws for examples using the TDiff function, discussed in the article dealing with Arbitrary sums.  Hope this helps.

Regards,
Georgios Kokovidis
Dräger Medical

Are the MMA commands part of a notebook file?  If so, you can import it using the MMA import wizard and see what comes out the other end.  There is an example using Maple 9.5 here

 

Regards,
Georgios Kokovidis
Dräger Medical

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