I congratulate Robert Israel on being the first to attain the Mapleprimes Maple Master badge. It is well deserved.

@Alejandro Jakubi Alejandro this is something like the 3rd time in as many weeks that you have used applyrule to nice effect, deftly providing a more general solution.

This is great because applyrule deserves more notice, if not as a bug-free command then certainly as representative of a symbolic problem-solving methodology. (And heavier use can lead to more bug...

Almost a couple of years ago,my quantum mechanics II course teacher was talking about the importance of diagonalizable matrices.Near the end of that lengthy class I was losing my attention & at that time he was talking about finding the diagonalization using Mathematica,but I was not sure.However,since I didn't/don't use Mathematica,I was trying to find the command to diagonalize a given matrix in Maple.I was using maple 13 then & I found a command  called "DiagonalMatrix(...

A Half-Life table of the Isotopes

** edit change a[i,j]:=0 to a[i,j]:=1

I was about to post this as a "How-do-I" question, but while composing my question, I stumbled upon the solution.  In case this "discovery" would be useful, I'm posting it here.

For some coursework, I'm developing fitting sinusoids to experimental data (poor-man's Fourier Analysis).  At one point, I do a "brute-force-least-squares" computation, one step of which involves computing the sum of a sine over N equally-spaced intervals around the circle.  This...

Just a small issue with how you insert a ^ (caret, wedge, circumflex, arrow, hat, what have you), / (forward slash), or * (star, asterisk) as a literal in a comment in Maple.

In regular code, it works fine;

Typing \_ produces _
Typing \^ produces ^
Typing \/ produces /
Typing \* produces *

In a comment, only underscores work as expected.  The caret, asterisk and slash leave behind the escaping backslash, which you will have to go back and delete yourself.

In previous version  "e" was recognised as the constant.. Now, it is needed to write in special way to get

the digits of "e" ( to use "expression palette")

I really do not know if that is a progress or regression for Maple.

JJ

As some of you know, I'm hoping to, some day, find a closed form expression for the MRB constant.

 Here is my latest little nugget.

Let x=MRB constant.

 = log(x) with an error< ...

I ran an advanced search in the application center at maplesoft and I'm not sure that it works properly.

Under advanced search I left the search field blank and selected MapleV to find all applications submitted for MapleV.  The first thing that happens is that it comes up with applications rated for newer versions of Maple.  Then it asks to click here to search our archived Maple-related applications (prior to Maple 10).

So I do that but it only produces...

(This is a reply to PatrickT, who asked about a certain ArrayTools:-Copy example.)

Suppose that you need to do a computation which requires, in part, a certain subportion of a Vector V. Let's call the routine which does the work as `f`. Let's suppose that `f` is a system command and not something that we write ourselves. One natural way to call `f` and supply the subvector is to call `f` like so:

   f( V[a..b] );

Here the inner range a..b denotes...

At http://www.maplesoft.com/applications/view.aspx?SID=97879 there seems to be a quite
interesting contribution by Rob Corless, Erik Postma and David Stoutemyer.

It would be helpfull and interesting to provide the according paper as well (through a link?).
Hope this message is read by Eric Postma.

PS: I wanted to drop an according message at the center as comment, but failed to log in,

Aren't the acceptance numbers for various badges just way too high? Mapleprimes has only had 2 (one each) Good Posts at this date. And no Good Answers or Great ones of either type. But that's clearly not right, as the new site has had lots of great posts and answers. This same issue was raised long ago, and the admin response of long ago was that it would be revisited.

And there...

@John Fredsted

This thread is 3 years old, I don't wish to upset anyone by "reviving" it, forgive me.

I came to this thread as I was searching for information on how to write efficient procedures.

I learned a great deal by looking at how others write a proc.

Now the LinearAlgebra package implements a KroneckerProduct so the need for user-written procedures to...

Stop ordering posts based on the number of thumbs up. 

It's certainly not fair when someone comes up with an original idea that causes a flurry of other great ideas only to have yours shoved to end because it got less up votes.  It gives someone else all the credit and I'm not a happy camper.  My post got deleted because it had a down vote and got shoved to the very end. 

A new release of MapleSim is now available.

MapleSim 4.5 Highlights

• Enhanced Modelica support, including the ability to access new collections of components using the Modelica import feature
  
  
• Increased speed and modeling capabilities for continuous systems with discrete events. The enhanced engine handles a far greater class of these systems than earlier versions, and shows significant...