MATLAB Answers

Oleg Komarov
19

TUTORIAL: how to format your question with markup

Asked by Oleg Komarov
on 6 Aug 2011
Latest activity Edited by Image Analyst
on 13 Aug 2016

[INDEX]

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[MOTIVATION]

Why should we use markups in the body of our questions?

The answer is a question: which of the two versions is more likely to be understood in a glimpse and has more chances to be answered by our readers?

.

< Consider the following question >

I have a vector of weights W=[10,20,30,50,23434,1,2.4,2] and a matrix A=rand(100,8) and I would like to find the row-wise weighted sum of A. I am proceeding in the following way: B=zeros(size(A)); for c=1:numel(W) B(:,c)=A(:,c)*W(c); end B=sum(B,2); Somehow I get huge numbers can you please help?

.

< Now, consider its formatted version >

I have a vector of weights W = [10,20,30,50,23434,1,2.4,2] and a matrix A = rand(100,8) and I would like to find the row-wise weighted sum of A.

I am proceeding in the following way:

B = zeros(size(A));
for c = 1:numel(W)
    B(:,c) = A(:,c)*W(c);
end
B = sum(B,2);

Somehow I get huge numbers can you please help?

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[AKNOWLEDGMENTS]

In alphabetical order by nickname, thanks for their suggestions to:

Walter Roberson

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[LOG]

  • 06 Aug 2011, 13:17 BST - created and added boldface.gif
  • 06 Aug 2011, 14:59 BST - added italic.gif
  • 06 Aug 2011, 18:58 BST - added index section
  • 07 Aug 2011, 00:03 BST - added code.gif and tutorial series section
  • 07 Aug 2011, 01:50 BST - added monospaced.gif, numlist.gif, bullist.gif and hyperlink.gif
  • 13 Aug 2011, 14:27 BST - added motivation section
  • 18 Aug 2011, 01:44 BST - added aknowledgments section and link to wish-list

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[TUTORIAL Series]

Do not forget to read the Markup help (located on the top-right corner of the Body pane)

Vote on Wish-list for MATLAB Answer sections my post if you think that a tutorial section on top of Answers could be useful.

  13 Comments

Jan Simon
on 27 Nov 2011

Dear Oleg: Thanks. I really appreciate this thread.
Unfortunately newcomers in this forum do not read the 20 most voted threads before they ask an own question.

Me too.

Ryan
on 18 Oct 2012

@Elige: Yes... the first two used tinypic the latter used uploadhouse. I uploaded the first two .gif's to uploadhouse for you.

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8 Answers

Answer by Oleg Komarov
on 6 Aug 2011

BOLDFACE

  1 Comment

Note: the bold mode only works between pairs of * in the same paragraph. If you highlight several paragraphs (with empty lines between them) and click on the Bold button, although an * will be put on the first line and last line of the selection, the bold will "break" because of the empty lines.


Answer by Oleg Komarov
on 6 Aug 2011
Edited by Oleg Komarov
on 8 Aug 2013

ITALIC

  1 Comment

Note: the italic mode only works between pairs of underscores in the same paragraph. If you highlight several paragraphs (with empty lines between them) and click on the Italic button, although an underscore will be put on the first line and last line of the selection, the italics will "break" because of the empty lines.


Answer by Oleg Komarov
on 7 Aug 2011

CODE

  2 Comments

Note: the code formatting mode will last to the first empty line, even if there are no spaces at the beginning of the lines in the block.

Another tip: please, please, please indent your code in MATLAB correctly first, before pasting it in.

To do this highlight your code in the MATLAB editor (for example type "Ctrl a" to select all the text in the editor), then type "Ctrl i". This "fixes/standardizes" your indentations. Then , paste your code in, and then click the "{} Code" icon. DO NOT CLICK "{} Code" before you paste in your code. That will not work.


Answer by Oleg Komarov
on 7 Aug 2011

MONOSPACED

  1 Comment

Note: the monospaced mode only works between pairs of bars in the same paragraph. If you highlight several paragraphs (with empty lines between them) and click on the monospace button, although an bar will be put on the first line and last line of the selection, the monospace will "break" because of the empty lines.


Answer by Oleg Komarov
on 7 Aug 2011

NUMBERED LIST

  3 Comments

Note: here must be a blank line before and after the # list

Note: there must be a space after the #

Note: the numbering sequence restarts at each empty line, so do _not_ put blank lines between the portions.

Note: the # must be after a "real" line break, where carriage return was typed at the end of the previous line; it is not sufficient to put it at what looks like the beginning of a line, if the line has been automatically wrapped down from the previous line.


Answer by Oleg Komarov
on 7 Aug 2011

BULLETED LIST

  3 Comments

Note: there must be a blank line before and after the * list.

Note: there must be a space after the *

Note: the * must be after a "real" line break, where carriage return was typed at the end of the previous line; it is not sufficient to put it at what looks like the beginning of a line, if the line has been automatically wrapped down from the previous line.


Answer by Oleg Komarov
on 7 Aug 2011

HYPERLINK

  1 Comment

Simple hyperlinks are not converted automatically by the site: that is being done by browsers.

Note: ensure that there is no whitespace space immediately after the < or immediately before the > or else the link will not be created.

Note: there must be whitespace (or beginning of line) immediately before the < or else the link will not be created. In particular, some people like to put links in brackets such as (<some link or other>) and that will not work because there must be a space before the < .


Answer by Image Analyst
on 13 Aug 2016
Edited by Image Analyst
on 13 Aug 2016

To insert an image into the body of your post, click this icon:

and either browse to a file on your computer, or specify a URL of an image on the web.

You might find it easy to use http://snag.gy. You can just type alt-PrintScreen (in Windows) to capture the active window into the clipboard. Then go to this web site and type control-v to paste it in. You can then crop if it you want. It gives you a URL that you can then paste into the URL field you see when you click the green and brown frame icon:

You can also use the paper clip icon to attach an image file to your post, but it will not be displayed. It will appear as a filename beneath your text. We would then have to right click that filename and save it to our computer, and then open the image in MATLAB or some other image file viewer. This is less convenient for readers because they can't see your picture immediately.

  0 Comments


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