MaplePrimes - Unanswered Questions

lprint(%) not working

C_R — Sat, 02 May 2026 11:43:12 Z

Just for my interest.
Why is the following not working

one := ``(1);
                           one := (1)

 lprint(`%`);
Error, Got internal error in Typesetting:-Parse:-Preprocess : "invalid subscript selector"
Typesetting:-mambiguous(Typesetting:-mambiguous( lprint(%), 

  Typesetting:-merror("Got internal error in Typesetting:-Parse:\

  -Preprocess : "invalid subscript selector"")))

but this works

lprint(one);
``(1)

Problem with uploading worksheet

ianmccr — Fri, 01 May 2026 15:43:11 Z

I was atttempting to ask a question about I problem with styles in the editor in Maple 2026. When I attempted to upload a worksheet showing the problem, my upload was blocked (SQL injection detected). The worksheet is question was, so far as I know, a standard Maple Worksheet containing a module in the start up code editor. How do I successfully upload a maple worksheet?

Copying text from the AI panel

C_R — Wed, 29 Apr 2026 16:22:15 Z

I do not understand why a once entered prompt cannot be copied from the AI pannel.

I also do not understand that a text passage from an answer (e.g. a proposed help topic) cannot be selected and copied to the clipboard with crtl-c.

It does not make sense to me to unnecessarily restrict a new program feature. This somehow spoils the show.

Is that a restriction to Windows or my local setting or something imposed on Maplesoft from a third party supplier?

Has anybody seen similar AI implementations in other products?

AI code: diff with respect to a function call

Jean-Michel — Tue, 28 Apr 2026 14:45:57 Z

Hello Ladies and Gents :)

I asked Maple AI to write a program to calculate the geodesics on a sphere.

see the attached ws.

When running this program I receive an error which I don't understand.

of course i know how to do it by paper and pen, it was just a test.

if someone could explain me this error i would greatly appreciate .

thank you and kind regards,

Jean-Michel

Moderator edit - here is the file:

geodesics.mw

How to install the migration assistant?

Mth2026 — Sat, 25 Apr 2026 19:36:44 Z

I have installed Maple Flow 2025 as a trial but have not been able to get the migration assistant add-on.

As part of evaluating Maple Flow, it is critical for me to try conversion of Mathcad 14 files.

Thanks.

Wrong root of sinc expression

C_R — Sat, 25 Apr 2026 08:27:51 Z

Here is another case where an incorrect solution of a non-algebraic expression is returned.

How to make Maple exclude solutions obtained with allsolutions where the expression is not defined?

IMO, allsolutions facilities of Maple should do this automatically. Anything from a mathematical point of view that speaks against an automatic exclusion?

(Are there other commands that provide a correct solution?)

By the way:

solve(sin(x)/x)

does not return a single solution as stated on the solve help page ("In general for transcendental equations, the solve command returns only one solution,...") because solve correctly discards x=0 but does not consider returning x=pi.

(1)

The above expression is not defined at

(2)

Error, (in value/Eval) numeric exception: division by zero

Roots of the expression with RootOf

(3)

(4)

Originally _Z1, renamed _Z1~:
is assumed to be: integer

(5)

(6)

(7)

(8)

The above should be false because is not defined for However, this is what automatic simplifcation does behind the scenes with the output (7)

(9)

For this particular case Maple should have returned a special name expressing nonzero integers, like .
or or are common symbols for that
So is incorrect in the solution and automatic simplification does something wrong.
Only substituing everything at once leads to a correct response:

Error, numeric exception: division by zero

Solve

(10)

(11)

(12)

(13)

(14)

Error, numeric exception: division by zero

Again is not a valid solution for the first solution butworks for the second solution

(15)

(16)

(17)

Substituing everything at once works

(18)

(19)

However, the second solution does not cover all solutions (it misses even multiples of π)

(20)

(21)

Related topic: I also think that new users and students should profit from a directly understandable output like this

Maybe adding new convert form is an option.

Download roots_of_sinc.mw