Is this a bug in Maple?  it gives error in Maple 2026.2 and also Maple 2025.2

restart;

ode:=-1/diff(Y(X),X)^3*diff(diff(Y(X),X),X)+4*X = piecewise(0 <= Y(X) and Y(X) < Pi,0,Pi <= Y(X) and Y(X) < 2*Pi,10,2*Pi <= Y(X),0);

solve(ode,diff(Y(X),X$2))

workaround is to use isolate instead of solve or Solve:

But why solve fails just because RHS is piecewise ?

Wanted to check before sending bug report in case it is by design.

I just opened maple to use it, and I receieved a notice that an update was available.  I proceeded with the update and it failed to install, complaining that "open programs" needed to be closed.  There were no open programs so I opted to have the installer "ignore" the warning.  However, it would not continue and it gave a list of two programs that were in use (even though I had closed Maple).  This is a snapshot of the warning.

It appears that the update may have completed as the maple version that appears during startup is 2026.1.  However, the program is very slow to open a new document (I have to click on the "New Document" button several times before it response) and very slow to close.(I have to click on the "X" icon (upper right of top menu) before it will close.

Any help would be appreciated.

Regards,

Frank DiJoseph

What are the best techniques for performing introspection in Maple Documents?

I would like to use the content within a Maple Document (.mw) as input to calculations and operations within the same document. I am aware of the DocumentTools Package, but it seems that needs to open a copy of the current document to perform operations and is dependent on the current document being saved to disk rather than working with what is already in memory. What techniques are available to work with the document's data model and content within the document, such section headings, section structure, and paragraph text content - as opposed to just the variables that have been defined?
 

Any suggestions for Electronic Laboratory Notebook (ELN) systems that work well with Maple Documents?

I find Maple Documents (.mw) useful for scientific work and data analysis. I frequently organize my documents in the style of a laboratory notebook experiment. The collapsible section heading and execution repeatability are key capabilities. Managing a collection of Maple Documents over time via file systems and revision controls systems (e.g., Git) is adequate, however it seems the workflow support and compliance capabilities of an ELN would be useful as well. A typical tension in the class of ELN systems is that many of them are prescriptive about the editor, requiring or strongly encouraging something like a web-based WYSIWYG editor that lacks the literate programming capabilities of Maple. If anyone has had a good experience taking advantage of ELN capabilities without them interfering with a Maple-document centric authoring workflow, please let me know.

Does Maple natively work while using a VPN? If not, where do I go to learn how to configure it so it will work using a VPN? In Maple 2025 and Maple 2026, Maple will soft-lock when when attempting to execute any worksheet or attempting to read any help section when using a VPN under the default configuration configuration of Maple. 

Is Maple 2026 compatible with Mac OS27.1 ___________________________________________________________

I am attaching two worksheets.  The first worksheet titled testflaw shows the original state of a module. The module in the startup code area contained two exported variables which were never implemented. The module had been used in testing the code.  The second worksheet testflaw2 shows the result after deleting the exported variables. (AsTable and TestAssociativity).  Note that when the worksheet opens a typesetting error code occurs.  It appears that the typesetting routines retain knowledge of the exported variables even after a Restart command.  

testflaw.mw    

testflaw.mw

On my installations I can neither convert nor copy/paste code with comments from 2D-Math to 1D without loosing the comments.
Also pasting to Word removes the comments.

Is that a known behaviour? Any workarounds?

Download copy_comments.mw

In the same sheet (Engineering Notation)

you can have: 

and

and even correct formating ... 

but there is no possibility to correct anything, it just ignores the settings ... unfortunately, I am pushed to use an older version ...

Hope this will change.

Hi everyone,

I am experiencing what appears to be a problem with Numeric Formatting in Maple 2026.

I have a worksheet where I calculate a numerical value using evalf, for example:

evalf(1 - (3.7*90)/(10.4*3600))

which returns

0.4663461539

When I select the output and use the Context Panel → Numeric Format, for example:

• Percent
• 2 decimal places

the preview in the math container changes accordingly (e.g. showing something like 0.45), but the actual numerical output below still displays as

0.4663461539

Changing the number format, decimal places, scientific notation, etc. seems to have no effect on the displayed output.

Even if not using  evalf.

Is this the expected behavior in Maple 2026?

• Does Numeric Formatting only apply to certain types of expressions or math containers?
• Is there a known issue with formatting numerical output generated by evalf?
• Am I missing a setting that enables formatting of worksheet output?

I have attached a screenshot illustrating the problem.

Any help or clarification would be appreciated.

Thanks!

After starting Maple

I then tried simpler prompts like "Hello", simplify(x),...

For all prompts I get the same error message.
I am not a frequent AI user but this is the first time I see that.
Has anybody else experienced the same?

Can someone send me a prompt that should work?

(Model type was Simple.)

Update:

It seems that this error occurs, when a second instance of Maple 2026.1 is started and AI is consulted in this instance. 

I am only occasionally using Maple versions with the new ribon user interface and noticed about 2 weeks ago that I cannot interrupt for loops under these interfaces. For example this one

for i to 1000 do
    i^i;
end do

I re-run the code today (after installing windows updates) and could interrupt before the screen was filled with output but not after executing the code a second time (without restart).

Is that reproducible on other installations?

Are there other commands that cannot be interrupted? 
If that is known, are there workarounds?

Update:
I have restarted Maple and have two worksheets open with the same code. I can repeatedly interrupt in one worksheet but not in other

Has anyone developed an Agent Skill for Maple compliant with the Agent Skills Specification?

I frequently use Claude Code to create and edit Maple Documents. It does fine alone, but I found adding a script to do a syntax check eliminated a lot of content errors. I also presume some instructions on how it should read the Maple documentation will improve its reliability. Before I go about writing my own Skill against the specification, I just want to check if there is already one in use within the community.

For many years I have used my own Style Set in Maple, mainly by adding a few extra heading styles (typically coloured headings). This has worked very well.

In Maple 2026, the default body text font has been changed to DejaVu Sans. Since the mathematical notation is still displayed in a serif math font (for obvious reasons), I feel that 12 pt DejaVu Sans appears noticeably larger than the mathematics because of its relatively large x-height. To my eyes, 11 pt gives a much more harmonious balance.

I therefore tried to change the built-in Text style from 12 pt to 11 pt.

However, I noticed something very strange.

When I open Style Management, select Text, and click Modify, the Character Style dialog already shows the font size as 11 pt (see the first screenshot). Nevertheless, when I switch to Text mode and start typing, the body text is still created as 12 pt, and the toolbar also reports a font size of 12 pt.

If I create my own custom style (for example, text11) with a font size of 11 pt, it works exactly as expected.

Is the built-in Text style intentionally overridden somewhere by the default Style Set, or is this a bug?

For comparison, I have also attached a second screenshot showing the visual difference between 12 pt and 11 pt body text. In my opinion, the 11 pt version blends much better with the mathematical notation.

Are there any demonstration help videos on creating an eBook? Currently I am struggling with the pages Having a laid out example would really help.  

I would like to do an eBook version of my help pages to send to some people. Hopefully I can use the current help worksheets. The are formatted based on the Maple help structure.

My currrent structure in the help section is:

Rational Trigonometry

      (about 40 help topics)

       RTProjective

       (about 20 help topics)

       UHG

       (about 20 help topics)

     Edit:- I have made a small step of progress using the " Assistant eBook template" but I am getting this error on build. I don't know how to find the cause of the error.