Get this Quaternion Package from Maple's Application Center. Make sure you get the March 2007 version not the March 2005 version.

Overview on Hamilton Quaternions

A Hamilton Quaternion is a hypercomplex number with one real part (the scalar) and three imaginary parts (the vector).

This is an extension of the concept of numbers. We have found that a real number is a one-part number that can be represented on a number line and a complex number is a two-part number that can be represented on a plane. Extending that logic, we have also found that we can produce more numbers by adding more parts.
Quaternion --> a + b*i + c*j + d*k, where the coefficients a, b, c, d are elements of the reals

Greetings. As mentioned in earlier posts, I often find the answer given to a question regarding the use of the 'sum' command as: don't use 'sum', use 'add', and all will be fine. I agree, and I use the add command for adding numbers together. But, if all I am doing is adding numbers together, from a sequence and nothing else, why not use the 'sum' command. It seems to be orders of magnitude faster than the 'add' command if there are a large number of numbers(I have no metric for what large is as far as numbers go). As an example, I execute the code below and look at the results. > restart:

I have a brand new Dell Laptop in which Maple 10 simply will not load. When I double click the icon, nothing happens. There is an item that Maple puts into the Windows task manager process viewer "maplew.exe" but nothing loads. When I built the computer, I installed my software in the following order. 1) I performed all the windows updates (both high priority and optional) 2) installed Mcafee Virus Scanner 3) installed Microsoft Office 2003 (and did all the updates) 4) installed Sun's Java Runtime environment and did all the updates 5) installed Maple 10 6) tried loading maple but with no success

Free Examples in MM Free Library on mechofmat.com.

Free Examples in MM Free Library on mechofmat.com.

I have been having trouble with the riemanntheta function included ith the algcurves package. I am running Maple 10 on a MacPro under Mac OS X. There are two sorts of trouble: 1. Memory leaks: repeatedly calling the function eventually uses up all of my memory 2. Incorrect results: Maple's values are _sometimes_ incorrect; for example, a large value at a known zero of the function. Anyone else run into this? TIA.

When execute the following worksheet to "Export" command, Maple lose connection to kernell.

Hello, i'm newbie here and spanish... Someone can help my, i want an procedure/function that you put an matrix and it will give you the rang/rank but not using the function implemented un maple... I'm using MAPLE 10 THX

The following seems like a bug. Now, it could be that Logic is not built to handle such requests, in which case it should die gracefully, instead of giving funny answers.

> Logic[BooleanSimplify]((x > 3) &and ¬ (y > 5) &or (y > 5));

                (5 < y) &or ((3 < x) &and ¬(5 < y))

and yet

> Logic[BooleanSimplify](a &and ¬ b &or b);

                               a &or b

Maple 11 on linux so far has been fantastic, but there's a problem with printing. I use cups, and every other application brings up its printing information just fine. When I try to print in Maple, it gives me an error that says "No print service found". Does anyone know how to deal with this?

Does anybody know how to move the legend in the ploting area? By default, the legend sits at the bottom and outside the plotting area. Thanks.

I used Maple10 to solve an ODE from my research project and got a solution with HeunC function. I did derivative of the HeunC function and got HeunCPrime function. However I found HeunCPrime is just a sign. It cannot be valued or plotted with a selection of parameters. My questions are as follows: 1. Is there any special package I need to use to value or plot HeunCPrime function? 2. Is it possible to convert HeunC into other functions which I can manipulate for derivative and plotting?

Anyone having issues with the printing time in Maple 10 when there are graphs? I have to print 12 graphs for a class and it took over 20 minutes. I never had this problem in any other version of Maple. Any suggestions?

Not sure where to report this. I tried emailing tech support through the web form, but it rejected my valid product code (nice). Here's the text of my message: I've just started using Maple 11 (upgrade from Maple 10) and I'm getting a really bad crash. All I'm doing at this point is experimenting and learning (new user), so the types of input I'm dealing with are along the lines of: > restart; > plot(sin(x), x=-5..5); And the like. The problem is, in some circumstances, but not others, Maple 11 will just shut down. No messages, no warning, nothing. It's just gone, and whatever I was working

I have a simple expression of the type F:= -kT*ln(Q^N); that I am trying to manipulate, but after using "expand" the resulting expression is -kT.ln(Q^N) instead of -kT.N.ln(Q) Why "expand" does not work? Is there anything else I must do in order for expand to perform the expansion?