I just uploaded a brand new version of MaplePrimes that brings with it a huge number of improvements that should make the site easier and more powerful to use.

The most obvious change is a new WYSYWIG editor that appears on all posting forms. This will allow you to enter posts in the same way that you would in most word processors. You do not need to worry about proper use of HTML tags. The editor has a number of toolbar buttons that make it easy to perform common tasks.

This editor has two buttons specific to MaplePrimes:

• The Maple tag button makes it easy to insert 2-D Maple Math, the same way you would have used the <maple> tag before
• The Upload button uploads a file using the File Manager and automatically inserts a link to the uploaded file into your post.

If you wish to go back to the old HTML style of posting, just click the "Source" button that appears in the toolbar.

We have made several updates to the MaplePrimes Student Forum. First, the theme for the forum and all topics within the forum has been updated. This change will make it easy to distinguish when you are in a different section of the site.

Also, new blocks have been created, seperating the active main forum topics from the student forum topics.

Next, there is a new type of post that you can create, a Maple Software Change Request use this form to send suggestions to Maplesoft about changes that you would like made to our software products. All submissions from this form go directly into our internal Bug tracking database, so they will be seen by developers.

Many users have requested the ability to let the administrators know when they see Spam or other inapproprate content on the site. There is now a new feature that makes this easy. There is a new  "Flag Content" link that appears on all Posts and Comments. If you want the administrators to take note of any posts, please click this link.

 

There have also been many smaller updates throughout the site. I hope that you are happy with the updates. Please comment on this post if you find any problems or would like any more changes.

 

Update - Comments have been closed on this post since it has become difficult to follow the many threads of discusson. Please post to the MaplePrimes suggestions forum with any comments that you have on the new site.

The third example on the Plot Tickmarks and Gridlines help page - ?plot,tickmarks(tickmarks) - shows how to put labels at specific locations on a plot axis. But I couldn't find anything in the help pages about altering their font. However by changing the labels to names (enclose in left quotes, instead of double quotes) their font could be set using the axesfont option.

Perhaps something could be added to the example mentioned above. In the longer run though, all the help pages for plots need to be re-written: at present they resemble an untidy scrapbook.

J. Tarr

Consider the following:

> [seq](x -> i*x,i = 1..3);
                 [x -> i x, x -> i x, x -> i x]

Why does it not produce output identical to the following?

> [x -> x,x -> 2*x,x -> 3*x];
                  [x -> x, x -> 2 x, x -> 3 x]

I have been working on equations containing trig functions, using manual methods, Maple's solve, and Maple's Roots, each as a check on the others. Up to now, I've been able to resolve discrepancies, but Roots balked on the following problem, and I don't know why. _EnvAllSolutions := true; solve( {sin(3*alpha) - 0.34},{alpha}); {alpha = 0.1156 + 0.8159 _B27~+2.094_Z39~} with(Student[Calculus1]):Roots( sin(3*alpha) - 0.34,alpha = 0..12); [ ] Roots doesn't like 0.34 & some other constants but the following with constant 1 does give me an answer: with(Student[Calculus1]):Roots( sin(3*alpha) -1,alpha = 0..12);

The command > contourplot(-1,x=0..1,y=0..1,contours=[0],filled=true); is supposed to fill the whole space with red (color for negative values) but it does nothing this is also problem once I need to define a piecewise function which is constant according to some condition, e.g. > f:=(x,y)->piecewise(x>1/2,x*y,-1); > contourplot(f(x,y),x=0..1,y=-1..1,contours=[0],filled=true); this should fill the entire half plane x>1/2 with red, it fills only part of the first quadrant...

The simpliest version of my problem is this: > f:=(x,y)->fsolve(sin(x+y+z)=1,z) > f(5,5); still ok but now: > plot(f(x,5),x=5..10); sais: "Error, (in fsolve) x is in the equation, and is not solved for" it seems as Maple would not first evaluate x:=5 and then solve f(x) :'(

I am looking for a program that will accept equations containing trig functions, determine whether they are identities, & if so, display the proof line by line. For example,the following equation can be proven to be an identity in about 11 steps: sec(u + t) = (cos(u)*cos(t)+sin(u)*sin(t))/(cos(u)^2-sin(t)^2) If such a program does not exist, I think it might be a useful exercise to write one. Alla

i wish to know how to install my Maple 10 onto my laptop which uses Windows Vista.

Hi, folks. I don't have much experience with Maple. At the moment I am trying to get an idea how the underlying algorithms for polynomial root-finders compare. For example, I believe MATLAB creates the companion matrix for a polynomial to then solve for its roots (eigenvalues). NAG routines use the method of Laguerre. NETLIB routines use the Jenkins-Traub Algorithm. What is the underlying algorithm used by Maple to compute the roots of polynomials?

I'm trying to solve cos(x/2) = 1/2. Both manual methods & graphing indicate that the two smallest nonnegative solutions are 2Pi/3 and 10Pi/3. However, Maple gives me > {x = 2/3*Pi-4/3*Pi*_B2+4*Pi*_Z4}; Maple agrees that the smallest nonnegative solution is 2Pi/3. The second solution is 2Pi/3 - 4Pi/3 = -2Pi/3. This is coterminal with 4Pi/3 but it is also coterminal with the apparent correct answer 10Pi/3. But how would I know that from Maple's answer?

Hi community, Could you please shed some light on the algorithmic implementation of Local optimization library. I'm confused about the difference between Local Vs. Global Optimization in terms of the algorithms being used. Is it the same algorithms for L vs. G Opt. with an improved version of the same algorithm in the Global package. Or it is completely different algorithms.... Thanks in advance

If one has ever used an XML editor, one knows the frustration of you having to do the bulk of the work locating mismatched or unclosed <> tags. Let us view tags as delimiters on sets and subsets. Consider the case where the XML editor has checked all beginning and ending tags and found an equal number of beginning and endint tags of a given name: a, b, etc. Nevertheless, even though we have an equal number of and tags and and tags is wrong syntactically because the "set" "intersects" with the "set" non-trivially, yet neither set is a proper subset of the other. Certainly, if a computer algebra system such as Maple can determine set overlaps like this, then

Stephanie Rozek chats with Fr. Mike May, from St. Louis University, during the Joint Mathematics Meetings in San Diego. He discusses his work with Maple, and especially how he uses it to teach courses in cryptography. A recording of his lecture “Using Maple worksheets to enable explorations of cryptography with minimal background” follows.

I've made up a worksheet of the Top Ten Maple Errors, containing some of the common mistakes I often see newcomers to Maple commit (especially in the setting of my Introduction to Mathematical Computing class). I hope you will find it useful in trying to avoid those mistakes. Of course this is only a personal list, and not exhaustive. Please feel free to argue the merits of other items that should be included in the list. Here is the link: Download 4541_topten.mw

For the past decade Doug Meade, at the University of South Carolina, has created and maintained a two-page document with essential Maple commands. The first version was created for Maple V, Release 4, in January 1998. n update has been created for each version of Maple (except Maple 10) as it was released. The document has become pretty stable - hence the omission for Maple 10. Here are links to the complete set of documents he has created

• Maple 12 (Nov 2008)
• Maple 11 (Jan 2008)
• Maple 9 (Mar 2004)
• Maple 8 (Oct 2002)
• Maple 7 (Jan 2002)
• Maple 6 (Dec 2000)
• Maple V, Release 5 (Apr 1998)
• Maple V, Release 4 (Jan 1998)

Comments, corrections, and suggestions for improvement are welcomed. Please contact the author by e-mail.