MaplePrimes - Maple Posts and Questions

Detecting the determinant of a Kronecker product

Harry Garst — Mon, 20 Apr 2026 18:35:21 Z

It can take a lot of time to verify the equality of the determinant of a Kronecker Product and the Zehfuss determinant. See attached worksheet)

As Acer has pointed out Abstract Linear Algebra is not implemented in Maple.
https://mapleprimes.com/questions/239405-How-To-Force-Maple-To-Use-Basic-Math-Results

Today I have been trying to replace the determinant of a Kronecker product by an unevaluated Zehfuss determinant. The first problem is how to detect whether there is a determinant of a Kronecker product present in an expression. Neither I nor Copilot, ChatGPT, Gemini and Claude were able to take this first step (although all the AI programs were very optimistically continuously presenting new code with the same disappointing results).

Maple_vraag.mw

Physics Updates for Maple 2026

tedh — Mon, 20 Apr 2026 15:29:07 Z

I am running Maple 2026 and my interest is in Physics.

Am I able to load the Physics package "Version 1854 and higher require Maple 2025" in Maple 2026?

Does the Physics package offer capability that is not in the standard Maple 2026 product?

Will there be a Physics package for Maple 2026 that will available shortly?

Thanks in advance.

Maximizing, with a constraint

Alfred_F — Mon, 20 Apr 2026 14:31:08 Z

...and starting values. I want to reproduce the maximum in Maple using the solution structure in the attached file, similar to the old Mathcad method. Instead of using the Euler-Lagrange equation, I want to separately enter the objective function, then the boundary conditions, and finally the starting values for an iteration (as was done in the old Mathcad solution block). I entered the latter into the "maximize" command using the Maple help text. But nothing is being calculated. What am I doing wrong? As I said, I only want a numerically generated approximate solution.test.mw

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Download test.mw

Cursors in worksheet mode

C_R — Sun, 19 Apr 2026 09:31:14 Z

I have troubles writing text passages including non-executable math with Maple 2026 in worksheet mode.

Since these "indicator switches" (or radio buttons) are not available any more, I have tried "toggling" between text and non-executable math by using F5. I am struggeling with too many use errors (changing mode, start writing in the wrong mode, deleting wrong text, toggling the mode with F5).

Is it normal that the cursor does not clearly indicate the entry mode state? Here is an example

There seems to be no difference between non-executable math and executable math. Only a small underline is visible. In document mode the cursor changes to grey for non-executable and to light blue for executable input. Was it allways like this (and I did not pay attention because of the above indicators switches) or is it something related to my local setting? Can someone confirm? Any other suggestions to speed up text editing.

Context: Commenting Maple worksheets with text mixed with nonexecutable math. I look for ways to speed up my workflow because the new quick access buttons do not provide quick access to change the entry mode. Too many clicks are needed. Usabilty has been degraded further with Maples 2026 version by shrinking the quick access button in size and moving them out of the user focus. They are now in the upper right corner of the screen but most user interactions happen on the left side of the screen. This is forcing me going back to shortcuts that I stopped using after the introduction of Maple 2021.

Insert Table Maple 2026

Ronan — Sat, 18 Apr 2026 22:16:12 Z

Insetr Table seems to default too test inpul in the cells. I am inserting it from this icon

I can't figure out how to change the whole table to 1d or 2d math input without individually changing each cell..

What am I misssing here?

Can pdsolve handle a procedure in the pde?

wingho — Fri, 17 Apr 2026 17:46:14 Z

pdsolve is capable of numeric solution for a 1-D standing wave equation with a constant c:

diff(u(x, t), t, t) = c^2*diff(u(x, t), x, x)

In my problem, c is a function of lambda; both c and lambda has a common parameter H. My problem has piecewise nonlinear function of c(H) and lambda(H) which cannot be reformulate as c(lambda) readily. I therefore use a procedure based on fsolve to enter lambda and back out c. In the example, I use piecewise linear function as demonstration. I ran into a "(in fsolve) Can't handle expressions with typed procedures" error.

If I can overcome this, my input to the procedure also includes du/dx. Can pdsolve handles such an equation?