MaplePrimes - Maple 2026 Posts and Questions

plotting an 1-D array

wingho — Mon, 11 May 2026 20:14:59 Z

Please see the attached worksheet:

Question 1: How to plot a partial portion of an array s2 using "dataplot," say the first 50 elements.

Question 2: I have also tried to use "plot" to plot the first 50 elements s2 and keep on getting errors or strange looking plot with horizontal lines. I have tried plot(s2,1..50), plot(s2,x=1..50), plot(s2,m=1..50), plot(s2[m],m=1..50), plot(s2[1..50],1..50], plot(1..50,s2[1..50]).

plot_exercise_a.mw

Maple 2026.1 shows a wrong version

LolaMund — Wed, 06 May 2026 04:59:15 Z

> kernelopts(version);
Maple 2026.0, X86 64 LINUX, Apr 28 2026, Build ID 2011354

Deleting a column from a DataFrame?

nmacsai — Tue, 05 May 2026 15:21:10 Z

Is the implementation of DataFrames in Maple antiquated compared to PANDAS or other modern implementations of DataFrames? Even doing the most basic tasks is extremely difficult or unintuitive. I have lived in the DataFrame help pages for 5 years and I still can't delete a column from a DataFrame. Will I ever get any work done?

delete_a_dataframe_column.mw

Color option in context-panel

Geoff — Mon, 04 May 2026 04:53:53 Z

Color option in Context Panel does not work

Steps to Reproduce:
1. Create or open a histogram.
2. Try to change its color using the Color option in the Context Panel.
3. Observe that the color does not change.
4. Click outside the histogram.
5. Click back on the histogram.
6. Try the Color option again — now it works.

Expected Behavior:
The Color option should work immediately when applied to the histogram, without requiring extra clicks.

Actual Behavior:
The Color option only works after clicking outside the histogram and then reselecting it.

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)

Update to Maple 2026

TechnicalSupport — Thu, 30 Apr 2026 17:26:11 Z

Maple 2026.1

We have just released an update to Maple. Maple 2026.1 includes further enhancements to the new AI Assistant and Plotting Themes, as well as Explore, accessibility, and the math engine. As always, we recommend that all Maple 2026 users install this update.

In particular, please note that this update includes a fix to the problem where titles do not show up when using the Explore commands title option. As always, thanks for helping us, and your fellow Maple users, by letting us know!

This update is available through Tools>Check for Updates in Maple, and is also available from the Maple 2026.1 download page on web site, where you can also find more details.