@eithne 

It's not possible to delete Maple "Art" Posts/Replies as spam. (The red icon's there, but doesn't function. The spammers have now realized this.

It would be nice if someone could revert the top-down ordering of Answers that took effect some months ago. It worked properly (newest at bottom) for twenty years.

It would be a really big improvement if someone could fix the back-end to use .png instead of .jpg for plot inlining of attached worksheets. (png would be best. jpg is about the worst choice, of several, and looks very grainy)

The backend misunderstands what it means if a plot structure lack the gridlines spec. So it incorrectly adds gridlines to every 2D plot that it inlines here (unless specifically told not to, which is the opposite of how the Maple GUI works since about 15 years ago).

@C_R In an Execution Group, you can press Ctrl-t to toggle into Text mode.

I do the combo, F3, then Ctrl-t, quite often.

@Christopher2222 It doesn't work if T__4 has been parsed as a subscript in 2D Input (regardless of whether its in an Execution Group or Document Block).

Worksheet or Document mode is also not the essential criterion. Being a parsed 2D Input subscript is what makes the difference.

It is possible to enter a literal T__4 in 2D Input mode. By literal I mean that it's not parsed/shown as a subscripted name, but rather as a double-underscore. In that case "Find/Replace" works.

Find/Replace on parsed 2D Input is very weak. I work around that by using 1D Input.

If I had a huge document from someone else, with very large input statements to search, then I might export all its input (either Export as Text, or WorksheetToMapleText) and work with that instead. At least I could be sure I didn't miss stuff, even if the GUI didn't give me the ease of automated cursor moves.

@studentX369 A significant change to set ordering came with Maple 12 (released, 2008).

Before that such sets (of lists) were ordered by the addresses in memory of their elements. That sometimes led to a few surprises.

I don't recommend it as generally useful, but you can still force the old set ordering scheme by launching modern Maple with the
   -setsort=0
option. If you do then the following code illustrates the additional risk of so-called session dependent results (due to address ordering). After each restart, and with kernelopts(setsort) thus being zero, the set is uniquified (and later, automatically simplified) to the same order in which the elements first get addresses in memory.

restart;
{ [3, 6], [-1, 6], [-1, 1], [-1, -2], [3, -2] };
plot( { [3, 6], [-1, 6], [-1, 1], [-1, -2], [3, -2] }, x=-3..4, y=-4..10, style=line);
restart;
# create them fresh, in this order (which happens
# to make their addresses be ordered of a particular way).
[-1, -2], [-1, 1], [-1, 6], [3, -2], [3, 6]:
{ [3, 6], [-1, 6], [-1, 1], [-1, -2], [3, -2] };
plot( { [3, 6], [-1, 6], [-1, 1], [-1, -2], [3, -2] }, x=-3..4, y=-4..10, style=line);

That older behaviour of sorting a collection of numeric lists (here, your points/elements) was more confusing. The dependence upon addresses appeared almost non-deterministic.

See also the setsort items on the Help Pages,
      ?maple
      ?kernelopts
and,
      ?updates,Maple12,symbolic

@WD0HHU I am not sure why the embedded zoomed/scaled plot loses its dimensions, sorry. (It seems related to being in an embedded Task Region, but didn't happen for at least one shorted example I'd tried).

You can manually zoom-in on the PZ plot, displayed in the usual manner rather than with InsertContent ,etc, as an alternative way to reduce the plot-title gap. It's a little extra manual effort, but it seems to do better on Close/Reopen:  AGAM_ac.zip

@studentX369 You can first do a shortcut to get a fresh/empty prompt.

@WD0HHU Could you attach an example?

@MichaelVio You're not using all the amended files from my earlier Reply. They have edits by me that allow their problematic plots to attain better.

@Preben Alsholm I too have been unable to Delete (as) Spam.

I notice that I also cannot delete/disable tags (duplicates, etc).

@MichaelVio Make sure it is being entered in 1D Input mode. The F5 key will change the mode, if the cursor is on a line in an Execution Group. Or you can change it with the cursor on an input and use the right-click menu.

One doesn't "close" (or remove a Question). You may, at your discretion, with give an Answer an up-vote (Thumbs up icon) or mark it as best/accepted (cup icon), each at its top-right.

@MichaelVio 

In the PlanckML.mw there was as assignment,
    E(nu) := %;
that was actually in 2D Input (despite being in red). That gets parsed as a procedure/operator definition in 2D Input mode. But the rest of your code (and other sheets) do it with the intention of being a forced (remember table) assignment to E(nu).

That's a reason why I'd like to know whether the plots are expected, in at least a qualitative sense. I am distrustful of this function call approach.

In all three sheets there were a few things related to working-precision and accuracy.

PlanckML_ac.mw
Aud2e_ac.mw
plkG_ac.mw

@eithne The Delete (as) Spam facility is not working since the outage, unfortunately.

That mechanism disables the account of the poster, so that they cannot so easily re-post. It also removes the user Profile (which often has additional spam URLs in it.)

ps. While I'm at it, there is another recent problem with the site, unrelated to the outage, but I don't know how to report it effectively: Answers with no votes (or the same number of votes) are now wrongly ordered top-to-bottom in reverse wrt the date posted. For years it worked properly, but now it's wrong. It's "top-posting" them, putting the most recent one at the top.

What do you think is the value of E(0)?

What is the relationship you are trying to use, between say v(k+1) and v(k)? Is it a recursive formula?

You haven't provided either an intended formula (recursive or not) or a sample of the expected series (output values). Please supply the relevant details.

ps. Let us know whether you're using 2D Input mode, because then preliminary values could be code in a conditional within the procedure instead of using suntax like v(k):=1 which gets parsed as a clobbering procedure definition.

@ashy In Maple 18 it does not do all additional simplification steps in the same way.

Download end_M18.mw