I have written a relatively large simulation in Maple10 and it is literally taking forever to run for any decent size and time. I have been trying to convert to C to run in C, which became a serious problem, then I tried to use "compile" which again was very problematic. They seem to work only when the code is written in a C-like format anyway, in other words to use of lists and very fussy with arrays and procedures within procedures seems to create problems. I just wanted to ask if there is something clever I can do, to convert my procedure (there are about 20 of them) and if there is certain rigorous formatting I can do without having to literary re-write my whole code, as that is the way it seems now.

The Maple V Share Library was a wonderful facility for mathematicians comprising some 140 Maple routines, packages and worksheets written by Maple users and contributed freely to the Maple community. John Maplenut has written a short program which allows the Maple V Share Library for Windows to be accessed directly from all versions of Maple up to and including version 10. You can access the Package from the Maple Application Center or from John Maplenut - Updated Maple V Share Library.

One might expect to find all curve fitting tools in the Curve Fitting Package, but some are in the Optimization or Statistics Packages. Would it be possible to bring them all together?

J. Tarr

The Maple Conference is the annual user conference held in Waterloo, Canada. For 2006, the dates are July 23-26. The conference information page contains the initial details.

Hello , I have been trying to plot the solution to a boundary layer problem using Maple via the following programme: >BVP:={0.1*diff(y(x),[x$2]) + (x^0.5)*diff(y(x),x) - y(x) = 0, y(0)=0,y(1)=exp(2)}; >J:=dsolve(BVP,y(x), type=numeric,method=bvp[midrich]); >plots[odeplot](J,[x,y(x)], 0..1,color=blue,style=line,symbol=circle, symbolsize=12); However,before I can write the instructions to plot, I get an error message saying: "Error,(in dsolve/numeric,bvp) unable to achieve requested accuracy of 0.1e-5 with maximum 128 point mesh (was able to get 0.17e-4), consider increasing "maxmesh" or using larger "abserr" ."

Hello , I have been trying to plot the solution to a boundary layer problem using Maple via the following programme: >BVP:={0.1*diff(y(x),[x$2]) + (x^0.5)*diff(y(x),x) - y(x) = 0, y(0)=0,y(1)=exp(2)}; >J:=dsolve(BVP,y(x), type=numeric,method=bvp[midrich]); >plots[odeplot](J,[x,y(x)], 0..1,color=blue,style=line,symbol=circle, symbolsize=12); However,before I can write the instructions to plot, I get an error message saying: "Error,(in dsolve/numeric,bvp) unable to achieve requested accuracy of 0.1e-5 with maximum 128 point mesh (was able to get 0.17e-4), consider increasing "maxmesh" or using larger "abserr" ."

I'm running Maple 10.02, Mac OS X.4.3, and Java 1.5, and when I give Maple an inverse laplace transform with a number, it returns the correct answer. But when I give it the same thing but replace the number with an arbitrary constant (i.e., I replaced 4 with k) it doesn't seem to be able to figure it out. Any suggestions on this?

>

I just push the last version of my sheet "proba4maple" dedicated to discrete probabilistic computations on my SourceForge hive.

The NIST Engineering Statistics handbook. It's a comprehensive collection of information on the effective application of statistical methods. Submitted by Mariner.

As a newbie to maple, I was wondering how do I find the maximum of a equation under contraint. i can find some but for this one I can't ... and it's getting to me f=1000*x+7500*y under constraint: g=10000000-(20000*x^0.8)*y^1.2 and for f=(20000*x^0.8)*y^1.2 under constraint: g=125000-1000*x-7500*y Who do I find the maximum using MAple 10 !!!????

Let's all congratulate Carl Friedrich Gauss for winning our prestigious Greatest Mathematician contest. Our next poll brings us back down to earth and requests your input and comments on what facilities you work with most in Maple. T4.

Maplesoft just announced a patch available for download here.

I had been following a thread on comp.soft-sys.math.maple titled: Maple missing solutions?

http://groups.google.com/group/comp.soft-sys.math.maple/browse_thread/thread/0dc424e68954103e/9511b79909ecf139?hl=en#9511b79909ecf139

In, short the OP was missing solutions to a set of equations involving sin and cos.

A respondent suggested converting to exp, which seems to have worked very well in that case.

For no particular reason I decided to try this with another equation and got some

results which I cannot explain. As follows:

> S1:=[solve(sin(x)=sin(1/x))];

A student of mine recently asked what algorithm Maple uses to calculate Eigenvalues. So, I tried diving into Maple Procedures. For example: >showstat(`Eigenvalues`); LinearAlgebra:-Eigenvalues := proc(A) .. [error catchers ommitted] .. 17 LinearAlgebra:-LA_Main:-Eigenvalues(`if` ... end proc How should I interpret that last line? Can I get Maple to show me what that procedure does? So far I've no luck cracking it. Also, is this the best/easiest way of going about learning what types of algorithms Maple uses. I understand that some (/many/all) of them may be proprietary and the persons at Waterloo may not want the general public knowing them, but even an answer as simple as "Accelerated Newton-Jacobi algorithm" would be good.

Hi, I have plotted the following chart using maple 10 on windows xp > plot(((x^2)+x-4)/(x-2),x=-4..6,y=-2..10); X being -4, 2 Which command needs to be executed to find the local extremity? Thanks in advance for any help… Robert