[LON-CAPA-users] Variable sig figs (not a range)

[Mills, Douglas G]

Thank you Gerd. That's what I was guessing. I've created a lot of content
recently using customresponse and very much appreciate the versatility and
complete control we have with that option, but was growing weary with
customizing everything that gets taken care of so neatly with, for example,
numericalresponse and have been moving back to numericaresponse as much as
possible as a great time saver. It's great to have both options available
though and again I salute the founders/developers of Lon-Capa for the
versatility and power of the system!

Doug


On 10/2/12 8:13 AM, "Gerd Kortemeyer" <korte at lite.msu.edu> wrote:

> Hi,

I am afraid for this special kind of functionality, you will need to use
> <customresponse>, and do string operations to see if the format is correct.

-
> Gerd.

On Oct 2, 2012, at 9:11 AM, "Mills, Douglas G" <dmills at illinois.edu>
> wrote:

> Thank you Stefan. Yes, I've since come across the &roundto function
> which I
> should be able to use when setting my display answer to their
> accepted
> answer so that I'm then displaying the number of decimal places I
> should be.
> What that solution lacks is a way to demand that they enter the
> correct
> number of sig figs up front since the correct number could be 4 (as
> in
> 10.34) or 3 (as in 9.34). Specifying the range of 3,4 allows for both
> of
> those but also allows incorrectly for 9.343 and 10.3. There seems to be
> no
> way around that at the moment. And I haven't tried it yet but I'm
> guessing
> the &roundto function will take care of the 9.343 but clearly can't
> address
> the 10.3 situation if I'm rounding to 2 decimal places.
> 
>
> Thanks,
> Doug
> 
> 
> On 10/2/12 7:09 AM, "Stefan Bisitz"
> <st.bisitz at ostfalia.de> wrote:
> 
>> Not sure if this helps:
> The problem is
> internally parsed two times anyway.
>> This makes it 
> possible to allow
> access to the student's answer in the perl
>> script 
> block located before
> the response block from which the answer
>> comes.
> 
> Stefan Bisitz
> 
> 
>
> Am 27.09.2012 22:54 schrieb Mills, Douglas G:
>> Thanks
>> Mark. I was
> thinking about this, but unless the script can somehow be
>> placed
>> within
> the numerical response, I don't believe it can impact the
>> submission
>> of
> the answer because it seems to be that when an answer is
>> submitted, it
> is
>> evaluated and then the page reloads so any scripts in the
>> head of
> the
>> document are not evaluated until after the answer has been
>>
> evaluated. Is it
>> possible to insert a script in a numerical response
>>
> somewhat like the answer
>> block in a customresponse?
>> 
>> Doug
>> 
>> 
>>
> On 9/27/12 3:28 PM, "Lucas, Mark"
>> <lucasm at ohio.edu> wrote:
>> 
>>>
> Doug,
>>> 
>>> Can you create a variable for sig
>> figs?  You can set it to 3
> when <10 and 4
>>> when >10.
>>> Place it as the
>> argument for the default
> option.
>>> 
>>> While I'm not totally sure this flies
>> (you want to check
> it out), I think it
>>> may work. You can
>>> set some other
>> parameters by
> variables.
>>> 
>>> Mark
>>> 
>>> On Sep 27, 2012, at 4:16 PM, Mills,
>>
> Douglas G wrote:
>>> 
>>>> HI All,
>>>> 
>>>> There may be an obvious way to
> do
>> this, but it¹s escaping me if so.  We want
>>>> students to enter masses
> they
>> are measuring in the lab to the hundredths
>>>> place, but we¹re in a
> range
>> where they could be dealing with numbers more or
>>>> less than 10,
> so 3 or 4
>> sig figs. I know we can accept a range of 3,4, but
>>>> ideally
> what we¹d
>> really like to do is to require answers to ³2f².  I know I
>>>>
> could do this
>> using a custom response, but before evaluating whether or
> not
>>>> it¹s worth
>> that effort, is there a way to do this using a
> numerical response?
>>>> 
>>>> 
>> Thanks as always,
>>>> 
>>>> Doug
>>>>
> 
>>>> Douglas Mills
>>>> Director of
>> Instructional Technologies
>>>>
> Department of Chemistry
>>>> University of
>> Illinois
>>>>
> dmills at illinois.edu
>>>> (217) 244-5739
>>>> 
>>>> 
>>
> _______________________________________________
>>>> LON-CAPA-users mailing
>>
> list
>>>> LON-CAPA-users at mail.lon-capa.org
>>>> 
>>
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>> 
>> 
>> Doug
>>
> 
>> 
>> Douglas Mills
>> Director of Instructional Technologies
>> Department
> of
>> Chemistry
>> University of Illinois
>> dmills at illinois.edu
>> (217)
>>
> 244-5739
>> 
>> 
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>> 
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> 
> 
> Doug
>
> 
> Douglas Mills
> Director of Instructional Technologies
> Department of
> Chemistry
> University of Illinois
> dmills at illinois.edu
> (217) 244-5739 
>
> 
> 
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Doug

Douglas Mills
Director of Instructional Technologies
Department of Chemistry
University of Illinois
dmills at illinois.edu
(217) 244-5739