Recently, Maple has become almost unuseable. Whatever I do, it suddenly becomes non-reponsive, the cursor stops blipping and nothing happens for about a minute, although I can still move the cursor around and the page slider works, suggesting that the kernel has gone mad.

Then suddenly it comes back to life, executes where it left off, which in most cases happens while I am typing input. A minute later it's back to sleep. When I look at the CPU usage while it is non-responsive, I can see CPU usage is about 30% (there is nothing else significant running), disk usage is about 1% and there is plenty of memory (everything in total wants about 10GB and I have 32GB).

I have the -nocloud parameter set and finally disconnected the network connection, but that didn't help.

It all seems to have started with the most recent upgrade, although I'm not 100% sure of that.

Is anyone else seeing something like this, or better yet, does anyone have a suggestion to make this behaviour stop?

How does one downgrade to 2024.1?

Thank you.

Hi:

I want to copy some Maple output elsewhere in the form of Maple input.

Usually, if I highlight the output expression I can copy it with CTLR-C, and paste it elsewhere where it appears as Maple input.

Just like you'd expect and just like you'd want.

But if the expression is fairly long and complicated (it covers two lines on my screent this time), the highlight insists on including the > symbol on the next line and when I paste, all I get is the Maple output that I started with.

If I write the output expression name to a temporary file and read it in another worksheet, the same thing happens when I ask for the name of the output expression - it appears as Maple output. But I need the expression in the form of Maple input so I can modify it.

All this makes me think that there is a limit to the size of the copy buffer, but I can't find anywhere to change that.

Does anyone know how to do this very simple task which usually works reliably for small expressions?

Thank you.

I have some library program files written using Maple 11 (or before).

I can read and use the file programs and they have worked fine for many years.

But I would like to actually see the programming commands that are buried within with a view to modification, so, according to the Maple "Help" file, I tried the following command sequence:

***********************************************************

restart;
interface(echo=4,quiet=false);
interface(echo);
interface(quiet);
                            1, false

                               4

                             false

read "C:\\Program Files (x86)\\Maple 11\\test3.m";

**************************************************************************

But there is no echo.

So, how do I read (and modify) these files?

Thank you

Hello:

I have created a simple plot and labelled a line as follows

Lbl:=plots[textplot]([600,-Pi*floor(R)*ln(R)-0.01,typeset(-pi*floor(r)*ln(r)),font=[Helvitica,bold,10]],labels=[T," "]):

where R is a number, so the label appears near where I want it to be:

But part of the formula is floor(r) and I can't make that appear as the 2D mathematical symbol for floor(r) in the typeset;

If I make the typeset part of an axis label or a legend, I can cut and paste the math2 expression for floor(r) just before I export the plot and that works, but how do I do that for a textplot that is sitting in the middle of a plot?

Thank you.

Hi:

In a plot title, I want  A^(1)(x) to appear - that is, the first derivative of the function A(x) with the "1" enclosed in brackets because that is the standard notation for derivatives of the special function A.

Alternatively, I'll be happy to use A'(x) - and I know that there are calculus characters on the pallet that are supposed to do that, but they all just become Diff and that is no good for other reasons.

So, here is the closest I've come:

Test:=plots[textplot]([3,3,typeset(A^[1],"(x)")]);

and that almost works, except if I change the [1] to (1), Maple tries to evaluate it as an expression and it disappears. If I change 1 to 2 it works fine, except I want the first derivative.

I've tried quotes, uneval, backquotes and all I get is an error or the quotes showing up as text.

Does anyone know how to do this?

Thank you.