[LON-CAPA-users] Hints for first LON-CAPA question

Peter Dencker dencker at math.uni-luebeck.de
Fri Jun 14 08:40:25 EDT 2013


Hi,

a clearer code suggestion. (was to tired last night ^^)


<script type="loncapa/perl">

$n = &random(8,16,1);
($mu_a, $sd_a) = (&random(4,16,.01), &random(1,5,.01));
($mu_b, $sd_b) = (&random(4,16,.01), &random(1,5,.01));

@a=map { &roundto($_, 2) } (&random_normal($n,55,$mu_a,$sd_a));
@b=map { &roundto($_, 2) } (&random_normal($n,55,$mu_b,$sd_b));

$table = '<table border=1><tr>'
  . join('</tr><tr>', '<td>'. join('</td><td>', '', 1 .. $n) . '</td>',
                      '<td>' . join('</td><td>', 'A', @a) . '</td>',
                      '<td>' . join('</td><td>', 'B', @b) . '</td>')
  . '</tr></table>';

</script>


- Peter


On 06/13/2013 09:04 PM, Joseph Mingrone wrote:
> Joseph Mingrone <jrm at mathstat.dal.ca> writes:
> 
> Hello all;
> 
> I'm creating a problem that I've included below.  My questions are:
> 
> 1. How can a student submit each part of the question separately?
> 
> 2. In the table, I'm building the header with $row1 .= "<td>$i+1</td>",
> but the $i+1 isn't evaluated and 0+1, 1+1, etc. is shown. How can I get
> the intended output?
> 
> 3. How can \bar{x} be displayed?
> 
> 4. In the last radiobuttonresponse question, only one foil is showing up
> even though I've specified max=3.  How can I make all three show up?
> 
> 5. This is my first attempt at a question and I have no sample code
> other than what's in the manual.  If you have any other suggestions
> about style or best practices, please pass them along.
> 
> Thanks,
> 
> Joseph
> 

-- 
Dr. Peter Dencker
    wissenschaftl. Mitarbeiter

UNIVERSITÄT ZU LÜBECK
    INSTITUT FÜR MATHEMATIK

    Ratzeburger Allee 160
    23562 Lübeck

    Tel +49 451 500 4254
    Fax +49 451 500 3373
    dencker at math.uni-luebeck.de

    www.math.uni-luebeck.de

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