Hi,

I just realized that Maple 8 shuts down without saving every time I try to save a document. Obviously, this is a very serious problem. Any tips? I actually uninstalled the whole software package, and reinstalled it, only to find that the problem was still there. I hope someone else has dealt with this. Please help. Thanks,

John

How can Maple arrive at the following, for an unspecified function f(x,y), without knowing sufficient conditions (eg. whether the 2nd partials are continuous)?

> # From the ?diff help-page
> diff(f(x,y),x,y) - diff(f(x,y),y,x);
                                      0

Continuity of integrands isn't generally assumed by int (there's a separate optional parameter which enables it...

Hi

I subscribe to different posts.  All the e-mail I receive is on my hotmail account.   I don't know why.  I would like to be able to change that settings so I will receive it on my outlook account.

How do I .....

Mario

Since some days I can no longer save threads in html format in a readable way.

Was there anything changed?

I recently submitted my work to Maple Application Center and I received a bug report from a staff. Then, I resubmitted it after fixing bugs. However, I have a bug report again (^_^; Yes, this is because my work was poor, but in other words, all applications in Maple Application center that passed strict check by staff are all guaranteed to have good quality. I am sure that everyone can find good tools for education and research. We should utilize them. If we can not find applications that we want, let us develop works and submit them ! Yasuyuki Nakamura

Hi there,

I'm struggling to understand the dynamics of a 3-D system of differential equations. I am interested in a numerical simulation. A phase diagram would be nice too. I've tried the standard bag of tricks, but remain quite lost.

Bonjour,

It seems that bit to bit functions on integers, like the C-functions and, or, not, xor, << (left shift) , >> (right shift), are missing in Maple.
 

Why?

> 8 and 25;
Error, invalid boolean expression

 

GraphTheory includes ImportGraph and ExportGraph.  These are handy functions but they would be much more useful if they supported GraphML.  GraphML is a popular standard.  It is particularly useful for integration with tools built with the Prefuse API (http://prefuse.org/).  Please add GraphML support for importing and exporting Graphs.

Hi,

I have a dual processor computer and I am using Maple 8 (because it is much faster than Maple 11) but I noticed that Maple 8 only maxes out one processor and doesn't use both.  I am using (unfortunately) Windows Vista.  I would appreciate any suggestions.

I also have a single 2.3 GHz processor at home with XP so I'll give that a try.

Thanks

For a bit of light relief, head on over to the online comic strip at phdcomics.com.  If you've ever been a PhD student, be careful, this strip might make the nightmares come back...

Hi.

I think there is a problem with arrays. When i define an array like this:

A := {1,12}
Then it works fine as you can see:
print(A[1])=1
print(A[2])=12

but if i do it like this:
A := {1.1,12}
Then the results is reversed:
print(A[1])=12
print(A[2])=1.1

I'm running Maple 11 and updated to the 02 patch.

When I try to integrate a function,Maple returns a summation sign and underneath this sign is the expression R= RootOf (      ),where the bracket contains a cubic polynomial written in terms of Maple's internal default variable _Z.  Why can't Maple simply evaluate the roots of this cubic equation and return the value to me? What do I have to do to force Maple to return the desired result? 

AntipodeanMan

Hello,

I have problem with define external function with dll written in Visual Basic.

Declaration of function is

Hi there,

fsolve fails me, for the first time. I have this very messy expression, which comes out of a cubic equation. It must have a zero. I plot it and the graph, smooth, shows a zero between 16.4 and 16.5, but maple's fsolve fails to find it, why's that? The slope of the function is very flat near the zero. I tried to tell maple the solution is between 16.4 and 16.5, to no avail.

Any advice will be much appreciated. The following code tells it all.

many thanks,

Patrick.

Hi, I have posted some Maple worksheet on MaplePrimes File Manager. Just a simple question, How do I delete uploaded files there ? Yasuyuki Nakamura