@Anthrazit 

Looks like a database comparision. Maybe the antivirus flags all software components that are outdated as high risk without any further evidence. Outdated software is a risk but also new versions can come with new risks. The key question is: Is there evidence of a security risk (this is not excluded: see below).

I have experience with 4 antivirus packages. Only one reminds me of outdated software but never mentionned Maple - so far.

That is something to bring to the attention to the IT responsible who introcued the new antivirus. He will most likely tell you not to use Maple anymore. :-(

Or if you are lucky he investigates the potential risk.

On the other hand only Mapelsoft can tell wheter the below is possible

I only find two files on my system which do not look threatfull.

What exacly does the Anitvirus list?

A server itself can be a threat. Are servers listed?

@acarchau 

Labels uniquely identify plot output. Is that what you are looking for?

from
https://www.maplesoft.com/support/help/maple/view.aspx?path=plot%2foptions

Otherwise you can use plots,textplot to place tags on your own.

@vv

This explains another behavior (attached) I could not find an explanation for... I should have tried 2022 earlier.

By the way: is(w = conjugate(w)) is on all my installations falsely true. So no regression as in your other example

Thank you.

 Simplify_elliptic_in_real_domain.mw

@Roy Hughes 

All what you see on the screen goes through a quite complex rendering process with many hard and software components involved. A good part of these components are third party (i.e. not under the control of Maplesoft, like OS components or graphic card drivers). What is saved in a Maple file and its representation in the Maple server is not what you see on screen. The Maple GUI (a separate software written in Java) is reponsible for rendering your input and the output from the Maple server.

I your case at a certain point the character sets get mixed up. On two windows 10 installations I have noticed (sometimes) a difference in rendering depending on the graphic card and the mode the graphic card operates. Depending on the system settings the graphic card in use for rendering can change (example: switiching between internal Intel graphics and a graphic card). 

In your case, it would be interesting to know which operating system is involved and whether input and output are affected in a similar way.

The fact that the rendering is as expected after a restart (of Maple or the whole system?) indicates that the system starts Maple in a correct way with all involved software and hardware components are configured correctly. Then (probably after some time running Maple) something changes the configuration. Maybe you remember something that happend before the occurence of the character change. This could give a hint of the cause.

@Thomas Richard 

Of course. It's a while ago that I used it and now I was searching under support

I found it finally. No crash any more with the attached. Maple 2023 requires right single quotes.

The GUI crash is another matter. Should not happen with incorrect input (IMO).

plot3d_in_2023_not_working_solved.mw

On a different PC:

No freeze before installing the lastest Physics package. Conversion to 1d works.

Preview in context pannel indicates ndash

After installation: Expected preview but freeze when doing right clikc convert to 1d input

@Christopher2222 

I was wondering if the type of graphic card could be retrieved as well. Is that possible?

@vv 

That is a nice debugging trick. (Copy paste in a startup code region works as well.) I will use it to track down at which point my original worksheet changed or changes.

What I know so far is that the ndash originates from Maple output (i.e. I never entered it). It might be related to the use of equation labels and it only manifest in Maple 2023. It can be that Maple 2023 generates a ndash when executing a document. I will send an update if I find something.

It's the first time I could not debug with lprint or convert to 1d (and the Maple GUI crashes). Thank you for your help!

All outputs removed and Maple GUI frozen.

(I am experiencing upload and editing problems. So I have to reply to myself to update the post)

1. Open the attachment above in 2023.

2. do

3. Try to execute the whole document

@sursumCorda 

I am mouth open for two reasons:

• First, I stopped my “elliptic investigations” at the point where I felt the need to transform moduli but could not find any reliable reference. I overlooked the connection formulas…
• Second, I did not know that eval can be used this way.

What is missing in your Maple trick is a formula connecting E(z,k) with I*E(z,k). I checked Maple’s function advisor for it. Perhaps it is not general enough to be listed there but it can probably be found in DLMF (If ones know where to look…).

You use two times 1/… in f which is not required. I would remove it.

Consider making your reply an answer to nm. It is at least a complex trick using assumptions and formulas not(?) available in Maple. It is the best way I have seen so far how to simplify with Maple such complex output.
 

Excellent!

PS.: The assumptions in your simplification match my complex3D plot above

Same for me. I try to upload an image

@nm 
I do not know MMA. Can I assume that FullSimplify is fully implemented in the complex domain?

Maple cannot simplify the intermediate result (simplify,symbolic can)

sqrt(sin(x))*csgn(sin(Pi/4 + x/2))

without the assumption

(0 <= x, x <= Pi/2)

Can FullSimplify do this? If it can and if this simplification is possible without assumptions, it would be desirable that Maple can do it as well.

Interesting to note that the derivation performed with Maple returns the substitution you mentionned but with a complex sign term.

sqrt(1 - 2*cos(Pi/4 + x/2)^2)*csgn(sin(Pi/4 + x/2))

Something does not fit together. Either the substitution cannot be applied in the complex domain (and hence the short result does not apply for the complex domain) or Maple could be improved when dealing with expressions without assumptions.

It looks like that MMA does more than Maple. To your original question about Maple tricks to shorten it would be interesting to see whether MMA can simplify Maples complex result. My guess would be no because of nonexisting(?) theorems and identities (see my reply to @sursumCorda).

Update:

Plotting the difference between Maple's differentiation and the original integrand in the complex plane reveals the domain where the expression are equal. Beyond that, the magnitude of the expressions is the same but the argument is different

plots:-complexplot3d(sqrt(sin(z))*csgn(sin(Pi/4 + z/2)) - sqrt(sin(z)), z = -2*Pi - (2*Pi)*I .. 2*Pi + 2*I*Pi, orientation = [35, 25, 0], title = sqrt(sin(z))*csgn(sin(Pi/4 + z/2)) - sqrt(sin(z)))