[DISCONTINUED] Wish-list for MATLAB Answer sections.

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Walter Roberson
Walter Roberson am 8 Feb. 2011
Bearbeitet: Rik am 14 Feb. 2023
This topic (which was not started by Mathworks) is for features you would like to see for this MATLAB Answers facility.
I suggest one wish per answer, so that people can vote for individual wishes.
What should you post where?
Wishlist threads (#1 #2 #3 #4 #5 #6): bugs and feature requests for Matlab Answers
Frustation threads (#1 #2): frustations about usage and capabilities of Matlab itself
Missing feature threads (#1 #2): features that you whish Matlab would have had
Next Gen threads (#1): features that would break compatibility with previous versions, but would be nice to have
@anyone posting a new thread when the last one gets too large (about 50 answers seems a reasonable limit per thread), please update this list in all last threads. (if you don't have editing privileges, just post a comment asking someone to do the edit)
  11 Kommentare
Joshua Thompson
Joshua Thompson am 12 Feb. 2023
estimate the current height change along the course between point A=(sqrt3/2,1/2) and B=(1/2,sqrt3/2) identitfy 2 ways to estimate this height change one with derivatives one without
power = 2;
f = @(x, y) x .* y.^power;
A = [sqrt(3)/2, 1/2];
B = [1/2, sqrt(3)/2];
t = linspace(0, 1, 1000);
x = (1 - t) * A(1) + t * B(1);
y = (1 - t) * A(2) + t * B(2);
z = f(x, y);
height_change = z(end) - z(1);
disp(height_change);
this gave the answer of 0.1585 but it doesnt seem correct if i change the ^ to * the answer becomes 0 am i correctly computing what the question is asking
Walter Roberson
Walter Roberson am 12 Feb. 2023
This particular Question is for discussion changes to the MATLAB Answers software itself -- the forum software that allows people to ask questions and make responses.
You should have created a new Question for that topic.

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Akzeptierte Antwort

Jan
Jan am 15 Feb. 2011
Perhaps this is implemented already - I didn't ask a question yet: If you select an answer as accepted, can you change the selection afterwards, if a better answer is given?
  6 Kommentare
Walter Roberson
Walter Roberson am 7 Apr. 2011
The Night Of The Living Dead Question!
("Brains. We want Brains!")
Matt Tearle
Matt Tearle am 7 Apr. 2011
Wow. I hadn't seen that one. That's...
Yeah.
Pity I can't vote twice.

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Weitere Antworten (151)

Andrew Newell
Andrew Newell am 8 Feb. 2011
It should be possible to mark up Comments.
  10 Kommentare
Walter Roberson
Walter Roberson am 28 Jun. 2012
Oh frabjous day!!
Walter Roberson
Walter Roberson am 29 Jun. 2012
Already I'm editing comments regularly. It's a very welcome upgrade!

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Royi Avital
Royi Avital am 9 Feb. 2011
M Language Syntax Highlighting.
  1 Kommentar
Amro
Amro am 24 Aug. 2012
I've created a userscript that applies MATLAB syntax highlighting using google-code-prettify (it was originally intended for Stack Overflow). Project is hosted on GitHub.
Install userscript directly from the following link: prettify-mathworks-answers.user.js

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vish
vish am 8 Feb. 2011
Notification when someone replies on a previously commented question or published.
  6 Kommentare
Andrew Newell
Andrew Newell am 24 Feb. 2011
How do we use it?
Bob Li
Bob Li am 15 Okt. 2011
Please, notification for comments on answers. Desperately need it.
Bob

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Walter Roberson
Walter Roberson am 8 Feb. 2011
  • In the list of questions, each question should have a "last updated" date and time, where an update is the addition of an answer or a comment or the editing of any part of it.
One can get the list sorted by most recent update time, but without a time stamp, one has to look at the individual questions all through to determine whether there has been an update since the last time one looked at it.
  4 Kommentare
Image Analyst
Image Analyst am 28 Okt. 2011
Looks like this finally got done in October 2011. Yay!
Walter Roberson
Walter Roberson am 28 Jun. 2012
And improved in today's update!

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Walter Roberson
Walter Roberson am 8 Feb. 2011
  • "Next" and "Previous" buttons while reading questions, to move to the next or previous question without having to go back to the list of questions.

Matt Tearle
Matt Tearle am 11 Feb. 2011
Include questions you've commented on (but not necessarily "answered") in "my answers". This way you can keep an eye on a question where you're asking for clarification or suchlike discussion.
Note: this would be rendered less important if we had notifications of some kind.
  6 Kommentare
Andrew Newell
Andrew Newell am 1 Jul. 2011
I just noticed this answer. If I search for my user name, I get 12 hits.
Walter Roberson
Walter Roberson am 21 Apr. 2012
According to the help documentation, you can currently search using commented_by: tag

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Kent Cabarle
Kent Cabarle am 9 Feb. 2011
Posting a photo in a thread..
  4 Kommentare
Oleg Komarov
Oleg Komarov am 10 Feb. 2011
You can do that with double passage, first by uploading a photo on say tinypic and then using the markup <<>>
Jan
Jan am 15 Feb. 2011
And if tinypic stops its service, the corresponding question or answer becomes meaningless. Would it be possible to host the pictures on a TMW server?

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Matt Tearle
Matt Tearle am 16 Feb. 2011
An automated email: "Dear [user], than you for using MATLAB Answers. Your question "[title]" now has [num_ans] answers. If any of these responses has helped you, please accept and/or up-vote them. If none of these answers has resolved your question, please provide further input to help guide others on how they can assist you"
This email should be sent after n days inactivity, at an exponentially increasing frequency;)
  9 Kommentare
Walter Roberson
Walter Roberson am 28 Feb. 2011
@Matt: LOL
I have heard it said that in situations where large-scale distinctions between people are relatively rare, that people tend to become preoccupied with small-scale status symbols, such as parking privileges or office size.
Matt Tearle
Matt Tearle am 1 Mär. 2011
Hah. Makes sense. I ripped off that line from somewhere -- it was describing university politics... I can completely see how the stuff I observed at universities was an affluent society's update to our primal urges to have our political enemies ax-murdered by corrupt government goons (after which you take their mud hut, beads, and lion skin loincloths).

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Matt Fig
Matt Fig am 2 Mär. 2011
Answer folding.
Say there is a question which has 55 some-odd answers. I keep coming back to look and see if there is anything new, but since the answers move up and down with votes and other mechanisms, it soon gets exhausting. If I had the ability to fold answers I have read before - a choice that would stick between logins - then this process would be much easier.
I would like to be able to fold and unfold answers within a question. Perhaps a little star would appear next to the unfold button if there were new comments since I folded the question.
  1 Kommentar
Jan
Jan am 3 Mär. 2011
A very important improvement! It is nearly impossible to find the new answer or comment in a set of 55 answers and 100 comments. It seems like even a comment, which is deleted directly after the creation, changes the oder of the answers. Then it is even absolutely impossible to find the modifications...

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Andrew Newell
Andrew Newell am 8 Feb. 2011
My Answers should display the number of votes for the answers, not the questions.

Andrew Newell
Andrew Newell am 8 Feb. 2011
Allow links to a specific answer, not just the question it answers.
  9 Kommentare
Randy Souza
Randy Souza am 28 Jun. 2012
We made it easier to find these in a release on June 27, 2012. Click on the "Link" button next to an answer or above a comment.
Here's a blog post describing the major changes.
Walter Roberson
Walter Roberson am 28 Jun. 2012
Nice, Randy!

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Andrew Newell
Andrew Newell am 11 Feb. 2011
The accept button should be further away from Comment on this answer, and it should be possible to undo it - at least for a grace period of a few minutes.
  3 Kommentare
Walter Roberson
Walter Roberson am 25 Feb. 2011
The further-away part, anyhow.
Andrew Newell
Andrew Newell am 28 Feb. 2011
It's a start!

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Walter Roberson
Walter Roberson am 9 Mär. 2011
Andrew mentioned as part of a previous suggestion that My Answers should include a search box. The same should also hold true when viewing someone's profile.
Go to my Answers and try to find something specific in there. With over 700 Answers logged already, good luck in finding what you are looking for...
The situation would not be as bad if the existing search box supported a tag for author search (and if author names were unique.)
  8 Kommentare
Image Analyst
Image Analyst am 18 Aug. 2011
But it took 21 days to see Matt's post. ;-) There has to be a better/faster way to find new posts since last time you looked at a post.
Helen Chen
Helen Chen am 22 Sep. 2011
As of last night, when you look at My Answers, it is now sorting by most recent. Enjoy!

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Oleg Komarov
Oleg Komarov am 8 Feb. 2011
We wanna see our reputation scores, let the challenge begin!
Smt like a Users list by score under the Home link (upper left corner)
Oleg
  3 Kommentare
Lindsay Coutinho
Lindsay Coutinho am 24 Feb. 2011
The Contributors list has just been added, it's located under Home link. Check it out: http://www.mathworks.com/matlabcentral/answers/contributors . Keep the feedback coming!
Andrew Newell
Andrew Newell am 26 Feb. 2011
Very nice! Sorry, Oleg - it looks like your program has become obsolete.

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Andrew Newell
Andrew Newell am 14 Feb. 2011
Adding a button for inserting images. Even though instructions for adding an image can be found in Markup help, more than one user has been unaware that it could be done (including one on this page!).
  1 Kommentar
Jan
Jan am 24 Mär. 2012
And store the images on a MathWorks server. The other hosters will delete the images in the near or far future and then the corresponding question will become meaningless.

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Jiro Doke
Jiro Doke am 16 Feb. 2011
A way to automatically scroll to the most recent answer/comment/edit. For example, this question has many, many answers and comments. But I don't know where the most recent stuff is. Perhaps there should be a "go to next recent content" button on the page, that takes me to different sections.
  9 Kommentare
Walter Roberson
Walter Roberson am 28 Jun. 2012
Ah, I notice that the recent activity information at the top of the Question display, is now a direct link to that activity. That helps for the very most recent change, but not so much if multiple changes have been made.
Randy Souza
Randy Souza am 28 Jun. 2012
The sorting regression is fixed--answers should now display with the accepted answer first, then the remaining answers sorted by number of votes (high-to-low) then date/time asked (least-to-most recent)

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Andrew Newell
Andrew Newell am 16 Mär. 2011
Walter mentioned a "Best of Answers" area. A more flexible alternative would be an "Add to my favorites" button, so we can each keep a list of answers that we find really useful.
Of course, we can always bookmark them in our browser, but it would be good to keep them in the same environment as our personal questions and answers.
  3 Kommentare
Walter Roberson
Walter Roberson am 16 Mär. 2011
Though the Best of Answers would be aimed more at the incoming people who are willing to do *some* searching but would get lost in the unstructured morass that exists now.
Andrew Newell
Andrew Newell am 17 Mär. 2011
I get lost in the morass too. Recently I spent fifteen minutes trying to find a particular answer and gave up.

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Matt Fig
Matt Fig am 8 Jun. 2011
A "Views" counter for the questions.

Walter Roberson
Walter Roberson am 9 Feb. 2011
When one is being shown a list of Questions, it would be nice if hovering over a question link would show you a brief summary (e.g., first 100-ish characters) of the question statement. This would make it faster for people to take a quick look to see whether the question was interesting, or a quick reminder of exactly which question it was.
  1 Kommentar
Walter Roberson
Walter Roberson am 21 Apr. 2012
Still on my wish-list! Was wanting this again about 2 days ago...

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Oleg Komarov
Oleg Komarov am 12 Feb. 2011
  1. More meta info about the contributors: num. of votes given, num. of comments...
  2. Keep the meta info separate from answers/questions: try to load Walter's profile...it takes already a lot of time and if he keeps at this rythm in a year it won't be possible to load it at all...
I'm trying to think of long run stable way to query the site to have a score of the contributors. You can see an attempt in User reputation: post here to get into the list. It already takes 6 minutes to retrieve that info.
In general, it would be nicer if the list of the contributors and the meta info was available at one shot (and basically this is what I'm trying to reproduce)
EDIT
TMW team implemented a page with the metascores: http://www.mathworks.com/matlabcentral/answers/contributors
Please refer to it and congrats to the team!

Walter Roberson
Walter Roberson am 7 Apr. 2011
Somewhere or other in the documentation, we need a note saying plainly that when a Title is edited, the effect is to create a URL which aliases the old one. For example, I had
http:.../4321-j-random-title
and after I renamed it, that continued to be valid in addition to the new name
http:.../4321-john-q-title
This behavior of keeping the old name accessible can be important because URLs may have been created linking to the old name. This is a good feature; documenting it would save people like me from having to worry about such things.
  2 Kommentare
Walter Roberson
Walter Roberson am 19 Mai 2011
Interesting... the behavior is not quite what I thought it was. It is not that aliases are created, but rather that as long as the number and dash are there, followed by any non-meta character (e.g., excluding '?'), then the match will be found. In the above example, http:.../4321-* would work just as well.
This is, incidentally, a way to link to a question by number without having to remember or copy/paste the entire title.
Randy Souza
Randy Souza am 28 Jun. 2012
Technically, the dash is not needed either. So, for example, you can get to this question via:

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Matt Tearle
Matt Tearle am 24 Mai 2011
Some way to prevent questions being deleted without a good reason!
I'm getting really annoyed with people whose response to your help is to disappear and take with them both their question and your response to it. It's happened more than once to me, and not necessarily questions where the poster was doing something dumb -- perfectly normal question, valid answer(s), then... floop! It's gone.
  2 Kommentare
Daniel Shub
Daniel Shub am 17 Okt. 2011
What really upsets me about a question that I have answered being deleted is I never can remember who asked the question. My feeling is if you are going to delete a question that I have answered, then I am not going to answer any of your other questions (at least until I think you have learned better).
Randy Souza
Randy Souza am 28 Jun. 2012
We implemented a partial constraint on this behavior in a release on June 27, 2012. You can no longer delete your own question once someone has answered it.
Here's a blog post describing the major changes.

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Sean de Wolski
Sean de Wolski am 8 Jun. 2011
A "How many users are online" string somewhere on the home page.
  5 Kommentare
Walter Roberson
Walter Roberson am 8 Jun. 2011
"logged on to MATLAB centeral" is the same thing as "authenticated to the web site" that I wrote about.
Matt Fig
Matt Fig am 8 Jun. 2011
Oh, o.k. You confused me with your technical speak. ;-)

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Paulo Silva
Paulo Silva am 18 Jul. 2011
I would like to have a way to see when someone's account was created and how many questions that person deleted (maybe even the names of the questions deleted for those who are editors), this is because I clearly remember having answered several questions from someone but all those questions were deleted and the very same person posted a new question yesterday, I replied and that person exhibited the same old behaviour that triggered my memory, he/she didn't even look at the links I provided and asked something that isn't MATLAB related, I didn't answer the specific question because I would waste my time, this is MATLAB Answers not Control Engineering Answers.
  6 Kommentare
Walter Roberson
Walter Roberson am 19 Jul. 2011
Although it is true that in theory this forum is about MATLAB, I find that in practice there are a lot of more questions about theory posed, or questions about theory that are disguised as MATLAB questions.
A fair bit of the time, "How do I do {something} in MATLAB" really means "I barely know what {something} is, but I have to implement it in MATLAB: how do I do that, preferably without ever having to learn anything about what the {something} really means or the mathematics behind it?"
I do admit that is the cynical view from having dealt with large number of students; I _do_ see people (including some of the students) who are interested in their topic, but are lacking the background in it and are also perhaps weak on their research skills (or research initiative) to investigate before trying to implement.
Randy Souza
Randy Souza am 28 Jun. 2012
We implemented "no delete if already answered" in a release on June 27, 2012. Click on the "Link" button next to an answer or above a comment.
Here's a blog post describing the major changes.

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Oliver Woodford
Oliver Woodford am 20 Jul. 2011
Many questions get asked again and again. Why? Because people are not searching for previous answers before asking questions.
Stackoverflow suggests some similar questions that have already been asked when people are typing in their questions. It's therefore easy for them to see that the questions already exist.
This system also relies on good questions being voted up, so they appear at the top of the list. I have asked several (dare I say) well-worded questions (and usually answered them well too), with a view to providing a resource for people to refer to. This effort is wasted by the questions and answers receiving no votes, and the fact that people never search for them anyway.
So, TMW please implement question suggestions like Stackoverflow, and regular users please vote for well-worded questions.
  1 Kommentar
K E
K E am 9 Feb. 2012
Just curious, why is Matlab answers separate from Stackoverflow? I would like to combine all my reputation points (low as they are) in one place.

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Walter Roberson
Walter Roberson am 8 Feb. 2011
  • Whether Preview is automatic or manual (or the switch-over point) should be a user preference.
  7 Kommentare
Randy Souza
Randy Souza am 28 Jun. 2012
We added a disable/enable button for the preview in a release on June 27, 2012.
Here's a blog post describing the major changes.
Walter Roberson
Walter Roberson am 28 Jun. 2012