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Description: Maple computer mathematics discussion group.
 

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By Pearson & prentice hall solutions  - 1:41pm - 1 new of 1 message    

Should an ODE solver complain when it can't resolve all integration constants from given initial and boundary conditions? 
  I give Maple and Mathematica the same 4th ode with 4 boundary conditions. Both give me back the same answer. But I think my boundary conditions are not right (I need to still sort this out but I think I got the condition correct), but the point is, one constant is not resolved, so the solution given contain one unknown coefficient.... more »
By Nasser M. Abbasi  - Nov 22 - 3 new of 3 messages    

How to use $include for file inclusion? 
  Could you please give me a tiny example for how to write a little example.mws File which includes some text file some.txt? As I understand the help pages, all I need to do is just to write $include "some.txt" but it doesn't work for me. Thank you, Rainer
By Rainer Rosenthal  - Nov 20 - 9 new of 9 messages    

Analysis of nntp traffic for Matlab, Maple, Mathematica, Sage and Scilab newsgroups 
  I used data from Google newsgroups to do some plots comparing newsgroup traffic trends over the years for the above groups. [link] Hope you find it interesting. --Nasser
By Nasser M. Abbasi  - Nov 19 - 3 new of 3 messages    

Equate command in Maple 
  Hi everybady, I have a equation in the following simple form D(x0+px1+p^2x2+p^3x3+...)=p(x0 +px1+p^2x2+p^3x3+...) where D is an operator. I want to get new equations by equating the terms with the identical powers of p, as follows p^0 : D(x0)=0 p^1 : D(x1)=x0 p^2 : D(x2)=x1 and so on. I saw "equate" command in maple tutorial. Is it possible to do that... more »
By Fırat  - Nov 19 - 3 new of 3 messages    

A bit of statistics trivia for Maple and Mathematica 
  I did a count of the number of functions in Mathematica 7 the other day, and I figured I should do one like this for Maple as well. So, here are some stats, maybe some might find them interesting. Mathematica 7: ============ The System (i.e kernel) contains 1,920 functions. It comes with additional 35 standard packages that can be loaded using... more »
By Nasser M. Abbasi  - Nov 19 - 23 new of 23 messages    

Are some Maple packages always loaded? example Galois Field (GF)? 
  hi; Maple 12. when I do ?index[packages], one the packages listed is Galois Field (GF) but if I do with(GaloisField) or with(GF) I get an error that there is not such package. Are there such "special" packages that do not need to be loaded? If GF is not a package, then why is it listed in the ?index[packages]... more »
By Nasser M. Abbasi  - Nov 19 - 2 new of 2 messages    

how to "unload" a package after it was "with" when it is implemented not using modules? 
  hi; Maple 12: When I type with(simplex) for example, I can't do unwith(simplex) because simplex package is not implemented using modules. ...Error,(in unwith)the procedure `unwith'is currently disabled due to the presence of table-based packages I am not sure then how to "clean" things out. Suppose I want to remove all... more »
By Nasser M. Abbasi  - Nov 19 - 2 new of 2 messages    

help! Using discrete convolution to approximate continuous convolution...? 
  Hi all, I am helping a friend on this. We would like to evaluate the convolution of f(x)=exp(3 * x) / (1 + exp(x) ^ 5). However, in Maple and Mathematica, using symbolic calculations, the convolution results in numerical oscillation (lots of spikeness). We don't know why. We just couldn't get rid of the spikeness. And we... more »
By Luna Moon  - Nov 18 - 1 new of 1 message    

Maple 12 GUI will not come up. But classical Maple ok, how to find problem? 
  Hello; For some reason, Maple12 will not come up any more on my PC. Windows XP, SP2. From Start menu, I click on Maple12 and nothing comes up. But When I click on classical Maple it comes up OK. This sound like a java problem? I get nothing on the screen, no error message. I tried to run maplew.exe from DOS, and I also see no error.... more »
By Nasser M. Abbasi  - Nov 18 - 6 new of 6 messages    

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