Dear Power users, I probably have a stupid question. Till now I converted my data txt files first to excel to import them in Maple 2026. I imagine there must be a better method. I have attached a sample file. As a side question is it possible to import several files at once? Thank you for your support

F12_1.txt

Maple 2026 and Maple 2025.2

Is this a bug in limit? or as designed?

Doing 

limit(sol,[_C3 = 0, _C4 = 0])

Gives internal error. But

limit(sol,_C3 = 0);
limit(%,_C4 = 0);

works and no error.

Worksheet below. I've had problems before with multilimit. I think I need to change my code to do limit one by one from now on.

Download limit_problem_april_2_2026.mw

Maple 2026 and 2025

What option to use to make PDEtools:-Solve show all solutions, even double/duplicate ones? I am not able to find it using AI or help.

Download PDEtools_solve_march_28_2026.mw

I am asking because I could neither find a type nor a property for nonzero integers. However, with the assume facility it is possible to combine properties 

assume(x<>0,x::integer)
about(x)
Originally x, renamed x~:
  is assumed to be: AndProp(integer,OrProp(RealRange(-infinity,Open(0)),RealRange(Open(0),infinity)))

Or:

restart;
assume(x::Non(0),x::integer)
about(x)
Originally x, renamed x~:
  is assumed to be: AndProp(integer,OrProp(RealRange(-infinity,Open(0)),RealRange(Open(0),infinity)))

Or:

assume(x::NonZero,x::integer)
about(x)
Originally x, renamed x~:
  is assumed to be: AndProp(integer,OrProp(RealRange(-infinity,Open(0)),RealRange(Open(0),infinity)))

Non(0) is also accepted by the type command which raises the question whether Non(0) is a property, a type or both.

On the other hand type does not recognise NonZero but "::NonZero" is accepted in the assume command (note the :: which is the operator for type definitions). 

The function Non, which is also listed under types, is also accepted in the context of properties. This is somewhat confusing since types and properties are different in nature. Can somone clarify?

By the way, the above examples also work when Non is replaced with Not because they are equivalent. However showstat(Non) works but showstat(Not) throws an error.

Not able to make odetest give zero on this Maple solution to this first order ode.

So not sure if solution is correct or not, as can't also get same solution by hand.

Any one can find a method or way to verify this solution is correct?

odetest says it satisfies the IC but not the ode itself.

Below is worksheet. Tried with Maple 2026 and 2025.2 both give same solution.

Site will not let me upload worksheet. Here is code

ode:=diff(diff(y(x),x),x)+sin(y(x)) = 0;
IC:=y(infinity) = Pi;
sol:=[dsolve([ode,IC])];

the_residue:=odetest(sol[1],[ode,IC]);
the_residue:=odetest(sol[2],[ode,IC]);

Tried many things, including different assumptions, but can't get zero.

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

On Windows 11.

When I insert a link to a worksheet Maple 2025 crashes (also with the Screen Reader version).

When I click on a hyperlink to a workbook in a document created with Maple 2024, Maple 2025 crashes.

Is this reproducible?

Edit:

Also opening a workbook crashes Maple 2025 (i.e. no hyperlinks involved)

[update: Maple 2026]

I have tried to reinstall the redistributable

but get error messages

(Should I install x86 instead?)

Could it be that the installation (of Maple and the redistributable) only works when logged in as an administrator instead of installing an update as administrator (beeing logged-in as standard user)?

Can someone confirm that inserting a hyperlink crashes Maple 2026 on Windows (11)?

Has anybody a workaround to link to a locally saved worksheet?