@Preben Alsholm 

Right, thank you

@Preben Alsholm please, could you explain me what is "Maple notatio a.k.a., 1D input" and how can I set it? Thanks

Why crash and not an error message?  Moreover, look at this: why 22?

Download edges.mw

Clear

I was hoping that gcd between polynomials took the same time as numbers, actually 0 seconds :-)

Thank you

The cpu time is now 18 s, what does it mean?

Thanks,

as you can see r is the same in our computation, so I believe for p and q. 

My pc is an Intel Core i5, 2.7 GHz, 8 GB RAM; the ratio between our times is almost 60. 

I don't know if that could be the problem.

restart;
r:=randpoly(x, degree = 15);
p:=expand(r*randpoly(x, dense, degree=10^5)):
q:=expand(r*randpoly(x, dense, degree=10^5+20)):
                     10       9       3            
            r := 87 x   - 56 x  - 62 x  + 97 x - 73

CodeTools:-Usage(gcd(p,q));
memory used=70.30MiB, alloc change=35.88MiB, cpu time=57.41s, real time=57.71s, gc time=125.00ms

                   10       9       3            
               87 x   - 56 x  - 62 x  + 97 x - 73

p:=expand(r*randpoly(x, degree=10^6)):
q:=expand(r*randpoly(x, degree=10^5)):
CodeTools:-Usage(gcd(p,q));
memory used=54.22MiB, alloc change=-8.77MiB, cpu time=59.03s, real time=59.77s, gc time=140.62ms

                   10       9       3            
               87 x   - 56 x  - 62 x  + 97 x - 73

Hi,

the issue is solved. If you are interested in, the problem was the graphic card's driver of my laptop Lenovo Yoga L13 (the card is Intel Iris Xe Graphics).

After updating the driver now Maple (and Geogebra) work.

I have had this software on two PCs for many years, with the same licence number.

I will contact the support, thanks.

> If I understand correctly Maple 2021 worked. Did 2023.1 ever work or never on your new Laptop?

Sorry, I am wrong, I unistalled Maple 2021 on my desktop; as the laptop i s new, I don't remember if Maple 2023.1 ever worked, because I work on pc and on laptop at the same time; I believe yes.

> Anything particular about the installation folder, installation behind a proxi or admin rights?

Nothing.

> When you start Maple 2023.1: What is written in the lower left corner of the Maple Window? You should either see Ready, Evaluationg or Opening worksheet.

Ready

> How does the mouse cursor look like?

Normal behaviour.

Thanks for your attention

Uninstalled and re-installed Maple 2023.1: nothing has changed

I'm very worried.

Now I remind that the day before the issue I uninstalled Maple 2021 ... 

> For open: Have you tried all of

• crtl-o
• File>Open
• 

Yes, nothing is happening anyway (I can see the hourglass for a moment)

> Can you open recent documents from the file menu File>Recent documents?

No, I can't

> Is File>New followed by and File>Save As also not working?

File>New: nothing is happening
File>Save as: nothing is happening

Sorry, I read the answer by tomleslie and I watched the attached colbasis.mw, but I don't understant how can you find the vectors of ColumnSpace(A) starting from the original columns of A. Thanks for any suggestion.

Yeah, it works, thanks!