I'm having a problem with Maple properly resolving full paths to metric files for GRTensorII. I get the following error: >qload(kerr); Error, (in grload) unable to read `/usr/local/grii/metrics/:kerr.mpl` Note the spurious colon in the path. Much thanks in advance, aphidskillroses

Maple 11 has been out for a while now so hopefully people have it. I thought I would write a short post detailing some of what was done in the area of Groebner bases. If you run the examples in Maple 10 and Maple 11, I would appreciate it if you could post the times and the specifications of your computer.

The Centre for Mathematical Sciences houses the Cambridge University Faculty of Mathematics, the Isaac Newton Insititute (where the proof of Fermat's Last Theorem was announced), and the Gordon Moore Library (Moore was the inventor of "Moore's Law"). The centre is situated on Wilberforce Road and was opened in 2003. It won four major architectural awards.

The Mathematical Bridge is a wooden bridge that spans the River Cam that joins two parts of Queens' College. You can see it from the Silver Street bridge over the Cam, or by visiting Queens' College, or by taking a punt trip along the Cam at the 'backs' of the colleges. If you ask a tourist guide they will usually tell you the story of how this bridge was designed and constructed by Sir Isaac Newton using mathematical principles, and was built without the need for bolts to hold it together. The college later wanted to find out how the bridge was built and dismantled it, but were unable to reassemble it in the same way and had to put bolts into it to hold it together.

Having looked recently at a suite of engineering software in use, I wondered whether engineers would need maths for much longer. Of course they’ll always need sufficient for business purposes, but my guess is maths will become unnecessary for engineering in much the same way as it’s unnecessary for weather forecasting. There would probably be a residual role for maths in engineering research, but not in the mainstream, and that would have huge implications for schools and universities. How do those engaged in teaching maths to budding engineers see the future?

Hello, I'm a recent arrival at Maple Primes (as in earlier today), and I seem to recall a much older version of either Maple, Matlab, or Mathematica having a 3D plot example of a "Schauberger" tube. I've looked through my old files and can find nothing. These are similar to a tornado or water whirlpool profile, so I'm supposing that cylindrical coordinates are a suggested goemetry. A "decaying radius" spiral looped inside the "Gabriel's Horn" elsewhere on Maple Primes has a similar 3D profile, but the pipes that Herr Schauberger patented in Austria long ago also decreased in pipe diameter as the spiral radius decreased inward.

It had been quite a while since I had read Joel Spolsky's great blog on software, so I headed on over and read his rather thoughtful post on customer service. I learned something from reading it, so I thought I would share it with others.

Hi, is there any other possibility to export Maple 3D graphic into VRML scene with axes and labels? When I use the plot3d(3*sin(x)*cos(y), x=-Pi..Pi, y=-Pi..Pi, style=patchnogrid,axes =framed, tickmarks=[3,3,3],grid=[50,50]); o:=%: vrml(o,`krychle.wrl`,tickback_color=brown,tickfore_color=yellow); i receive the VRML file with axes tickmarks as cubes. For an example of 3D graphics in VRML format with axes and labels see Holodraw. With best regards Roman

/ ranting on I use Win XP home on an Acer, which has an Athlon (do not care for specifica). It installs with a blank space in the directory name as default (which may cause troubles if using Open Maple with MS compilers). Installing Watcom not even gives a warning to prior installed ones (so I hope it does not matter ... say having some modifications in it [well, a backup is never a bad idea before any install ...]). It does not adapt settings from M10 (I think 9.5 -> 10 did so), i.e. global settings and style sheet had to be done again. And: it does not associate M11 to *.mws (classical sheets are my default).

The University of Cambridge has been the academic home of a long list of mathematicians. Many of the best known and most influential have held the position of Lucasian Professor of Mathematics. These have included Sir Isaac Newton, Charles Babbage, Paul Dirac and the current holder Stephen Hawking.

Click below to find all of the places that have been documented about the United Kingdom.

Hi, I recently installed maple 11 on my intel mac (macbook pro). I've been observing odd behaviour when I run some of my workheets. They stall with an error of "lost kernel". I opened the mac "activity monitor" utility to watch the memory usage and ran the worksheet again. When it reached the difficult command, I watched the free memory decrease to zero while the "inactive" memory increased. When the free memory went to zero, the kernel was lost. Could someone explain to me what's going on here? many thanks!! Mary

Maple 11, 10, 9,.. do not work under Vista yet. After a tricky installation, File Open and File Save do no work. Mathematica 5.2 and Matlab 2007 run with no problem in the same environment. I would not rush purchasing any version of Maple if it is going to run under Vista.

Hi: Procedure "rsolve" in both Maple 10 (and 11) gives a complicated answer to the following recursion: rs:=subs(n=n,4*(n-1)^2*f(n-2)-(3+8*n^2-8*n)*f(n-1)+4*f(n)*n^2); ans:=rsolve({rs=0,f(1)=3/4,f(2)=41/64},{f(k)}); The answer involves both indices "n" and "k". I tried testing the answer by checking the original recursion equation and it doesn't work. (I am not posting the answer, but you can generate it by yourself by pasting the code above) Questions: 1. What does it mean when a recursion solution involves TWO indices? An example similar to this case is given in the help file, but the answer only involves one index.

In a posting posting at http://www.math.utexas.edu/pipermail/maxima/2006/000126.html Fateman cites Gosper with an interesting approach to compute the hypergeometric function 2F1. I used that to produce a compiled version (double precision only), which can be achieved from Excel for example. The approach however can be used within Maple as well. The idea is, that with his way the linear transformations given in A&S need to be applied only once to cover the whole complex plane: up to 1 transformation one can use either Gosper's recursion or even lives in the unit circle with radius 1/2 (where the hypergeometric series already converges quite fast).