MAple 2026.0

Maple 2025.2 craches on SupportTools.-Update()

Can anyone verify? 

Solutions?

FYI: The user interface issues I was having with Maple 2026  have now been resolved.

Documents imported with the AI-assistant can containt private and confidential information.

I was wondering how privacy is handeled by third party AI services that are called by the AI assistant.

From https://openai.com/enterprise-privacy/ it is not clear which product is running and how Maplesoft has set it up.

Anyone knows more?

I use plots:-display(Array([p1,p2])) to make two plots (or more) show side by side in worksheet. The problem with this is that there is no way to control the overall width of the output. 

It always takes the entire width of the worksheet window.  Using size=...  makes no difference. This only changes the size of each plot, but does not change the width of the display. Even when using size= inside the plot itself and not inside the display command, it makes no difference to the overall width of display. 

Here is an example to make things clear (site will not let me upload the worksheet).

Here is code and screen shot

s:=t->2*t^4-30*t^3+135*t^2-120*t-10:
v:=t->diff(s(t),t):
p1:=plot(s(t),t=0..8,'gridlines','thickness'=3,'color'="red",'title'="Plot of s(t)"):
p2:=plot(v(t),t=0..8,'gridlines','thickness'=3,'color'="blue",'title'="Plot of v(t)"):
plots:-display(Array([p1,p2]));

This is too wide. Adding size makes no difference. What size does is change each plot size, but display still is using the whole width of the worksheet which makes it look ugly

plots:-display(Array([p1,p2]),size=[300,300]);

I wanted it to look like this (using paint.exe to move things)

ie. to adjust the overall size of the display.

I can avoid display all together and just do 

[p1,p2];
#or
Array([p1,p2]);

But now each plot becomes too small and do not know how to make it larger, but at least they do not take the whole width of the worksheet

Is there a way to tell display not to use the overall width of the worksheet? say to use 50% of the current width and center the output, like the above example made using paint.exe shows?

Hello Friends.

I have created two piecewise functions: dx(t) and dy(t).  I then converted them to RandomVariables:  DX and DY.  When I try to perform a mathematical operation on the random variables, I get a Dirac function, which is unintended.  When I read about this issue, I learned that flawed (discontinuous) piecewise functions may be the problem.  However, my piecewise functions look ok to me.

Does anyone know why this is happening?  I do expect a lenghty result when I process the random variables, but not a Dirac function.  My code is below:

TriangleEuclidean.mw

I want to give my Tensor a the index i with define (a[i]) , but it is not allowed. Can anybody help ?

thank you !

Could someone please help me understand this

restart;
expr:=(A*x-1 )/x
eval(expr,x=infinity)
    # 0    why?

limit(expr,x=infinity)
   # A correct

How did Maple evaluate expr to zero when x=infinity? What math did it use to obtain this result? Did it may be just saw infinity in denominator and said the whole thing therefore is zero?  But there is infinity in the numerator also and infinity/infinity is not defined.

Maple 2026 and Maple 2025.5 on windows 10

Here is a minor nit regarding combining plots in Maple.

Download mw.mw

I am trying to use the symbol Delta in front of a symbol to denote a change in the variable in Maple 2022.For exmaple Q':=Q+Delta_Q; But I can't figure out how to denote it: Delta_Q does not seem to work as it displays a literal "Delta_Q".

Maple 2026 can't solve this first textbook  ode. Book gives solution in the back which Mathematica gives, but for some strange reason, Maple dsolve can't solve it with the IC given. I also tried Maple 2025, it can't solve it.

ode:=diff(y(x),x)*sin(2*x) = 2*y(x)+2*cos(x); 
ic:=y(1/2*Pi) = 0; 
sol:=dsolve([ode,ic]);

No solution. returns ()

But this is the solution from book which Maple verfies is correct

book_sol:=y(x)=tan(x)-sec(x);
odetest(book_sol,[ode,ic])

gives [0,0]

Here is Mathematica also

Why Maple can't solve it? ofcourse it is not a bug not to be able to solve an ode, but Maple being the best ode solver in the world should have been able to solve it. I've also solved it by hand (it is just a linear first order ode) and got same solution. Maple can solve it without the IC. 

So the issue is in resolving constant of integration using IC is where the problem is.

May be someone could find why Maple can't solve for the constant of integration from the IC. Here is the solution without IC which Maple finds with no problem

ode:=diff(y(x),x)*sin(2*x) = 2*y(x)+2*cos(x); 
sol:=dsolve(ode);

According to the help text in Maple 2024.2, a number of classical integral equations can be solved using "intsolve". The Volterra equation of the first kind, with an upper limit of integration x, is of particular interest. A long time ago, I had to solve a similar equation. This one arose from a model of a real-world process, but instead of x, the upper limit of integration was the function y(x), which I had to calculate. I painstakingly solved it to a good approximation. Is there an algorithm in Maple that can at least calculate an approximate solution, or is a numerical solution, e.g., using Ritz, the only option?

edited: I forgot to upload an example

 test.mw

Hi,

I was running Maple 2022.2 on Windows 11 and now I am using Linux Mint. I ran into something today that doesn't work as expected on LM. I thought it did on Windows, but now I am not so sure.

At any rate, I am unable to browse large vectors or matrices with more than 10001 rows. I looked for a setting that lets me change it, but I can't find one. The data is there--I can plot it and export it, but I can't browse it.

Any thoughts? Thanks.

Cheers,

Jno.

There seems to be a regression in Maple 2026 in the XMLTools:-ParseFile function.

As Maple2026 is not yet in the list of products to be chosen, I have added it in the subject.

Error, (in XMLTools:-ParseFile) invalid input: too many and/or wrong type of arguments passed to XMLTools:-NSXML:-Parser:-ParseFile; first unused argument is prolog = true

The test file is right from the help related to ParseFile.
Test_XML.mw

Example: In the expression

expr:=1/sqrt(2)*(x+a);

I prefer the output

over

because it is shorter. To fix that I do

expr:=1/sqrt(2)*(x+a);
subs(sqrt(2) = 2/%sqrt(2), %)

The problem with that way is that all occurences of sqrt(2) are replaced, which I do not want. I only want to replace sqrt(2)/2.

I thought about selecting all products that contain 1/2 and sqrt(2) among others and apply the substitution only there.

How to do this in a (simple?) way?

Maybe there are other ways without subs.

Hi,

For a pedagogical purpose, I am trying to build an animation that illustrates the connection between:

• the area under the curve of a probability density function, and

• the cumulative distribution function of a random variable.

The idea is to let a bound x vary and show simultaneously:

• the accumulated area under the density curve up to x;

• the corresponding value of the CDF .

My goal is to obtain a visual representation that helps students clearly understand that the cumulative distribution function represents the accumulated area under the density function.

Do you have suggestions on how to organize this cleanly in Maple, possibly with synchronized animation or an interactive visualization?

Thank you very much for your help.

Q_CDF_PDF.mw

I'm new to MapleFlow, and I have a few questions about MapleFlow help.

1. I read the recent post about the release of MapleFlow 2025.2, and it mentions some new functionality and bug fixes.  Is there a "What's new in MaplleFlow 2025.2" section in a help file, online or offline, that lists the new features and bug fixes?
2. I can find Online Help for Maple, MapleSim and MapleSim Toolboxes, but I can't find a section for MapleFlow.  I realize that MapleFlow and Maple share a lot of functionality, so the Maple section covers the functions, but there are MapleFlow-specific features that don't seem to have their own section in the Online help.
3. The offline MapleFlow help seems rather dated and limited.  When was the last time any updates were made?  Are there plans to continue to improve the offline MapleFlow help?
4. I have a few tech support questions in, and I have received some feedback, but at least one has been sent to the Math group for review, and it's been about a week, and I've heard nothing.  Is there somewhere we can check the status of our tech support issues?

Thanks