Dear all, I'm a beginner user of Mapple. I'm seeking an analytic solution of: integral{ 1/(ax^3 + bx + c) dx} Would you like to help me... thanks. regards, agus

Hello all, I am solving a non-linear ODE with "dsolve({eqn,bc},phi(eta),series", that is, with a series solution. I solve for three different orders: 1,2 and 6. I then plot them and see that it is approaching what it should look like. However, on line 3.5 and 3.6 I evaluate the solved functions (the 2nd order ODE was made into two first-order ODEs) and find that line 3.5 gives the right(?) value of the original variable but the second line (3.6), which evaluates the derivative, keeps changing its value everytime I execute it. I am totally lost as to why it does this. To my knowledge I haven't used any special names and no other worksheets are open.

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

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

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.

I have a new 64 bit machine with 8GB or ram and a CORE-duo processor. I just installed Maple 11 on this machine and it can't seem to access all of my memory. Programs which ran just fine under Maple 10 crash the kernel under Maple 11. The same problem works just fine on my home machine which is a 32 bit machine with 2GB of ram. What's up with Maple running on an 64 bit machine?

Hi everyone! recently i tried to install maple 10 to my new laptop (runs with windows xp with 2gb ram). The installation went well, just that maple 10 didnt execute at all. It seems that only maplew.exe runs, but not maple.exe (I looked in windows task-manager). Anyone has any ideas?help me please....

I have a polynomial with rather large coefficients: p:=1603710010923073199968*y^23-4364988985594176705252*y^24+422547655969296000+7264153102578558336*y^45+169065700403745582736*y^13-128611747738076673444*y^8-8563613556595259093454*y^28+6789223631529042689902*y^27-2130626240045610796318*y^26+525108809846649600*y+1728547142232628712538*y^18-5445232004984302080*y^2+19613711933501261400*y^4-9838556541278899632*y^3+5707977232657388436*y^6+52290885425808675492*y^5+2632496986338017041292*y^25-171614538652243215240*y^44-1036024897217729030368*y^20-1012602829399487118036*y^40-539338455258111066258*y^42+2773573937520155972892*y^37+520826747617965591864*y^41+2623263653532705732432*y^39-1803335585671962783882*y^38-8590075986982288335146*y^32+611279042420310141816*y^43+4951684899383201226144*y^33-4424947769398292794458*y^34+5954251478749298303256*y^35-3833757485270573904036*y^36-5651683376181765437070*y^30+8111066818063209027372*y^31-635739559009793671968*y^21+401371746662750628814*y^14+85726525982246133894*y^47-236062009670172788728*y^17+1489801241415705188478*y^22+43199536383488301966*y^11+5320957181769399275536*y^29+203205821220894857112*y^10-49909141835427891744*y^46-107459394748809783696*y^7-537835780154113147710*y^12-637675704663881634042*y^16+203782518948443125548*y^9-45370560690351525618*y^15-410373207686338300844*y^19;

In Maple 10 today I exported a graph to eps, with the intention of using the LaTeX package psfrag to jazz up the text. I used textplot to place the tags into the eps file as I have done many times in the past--using Maple 9.5, 8, etc. To my horror, in Maple10, the textplot gets placed into the eps file in some hopelessly cryptic way, and psfrag fails to find the tags, and LaTeX replacement of the tags fails. I generated the eps file by right-clicking on the graph, and so I decided to see what happens the other way...click on the graph, select "plot" on the menu, then "export" etc. This worked, almost. I got a simpler type of an eps file, and with this file, LaTeX was able to replace the tags I put in the eps file using textplot. Almost: when I applied the functor dvi2ps, color was lost!

Using Maple 10 on windows XP machine (laptop and desktop). During certain operations/calculations, the screen will flash. This also occurs when opening a maple document that needs to recalculate - the screen flashes repeatedly during the re-calculation. Has anyone else seen this? Regards, Frank

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.