[LON-CAPA-users] comparing submitted answer with ..

[Jim Maxka]

Thanks for the question about &EXT and the added documentation.  This is 
useful. 
My question:  Is it possible to use the &EXT subroutine to set up a 
conditional answer (i. e. if the first answer is A, the second and third 
are B and C, but if the first answer is B, the second and third are C 
and D?  --jim

Guy Albertelli II wrote:

>Hi Hon-Kie,
>
>  
>
>>>>I like to able to use the student's submitted answer so that I can use 
>>>>        
>>>>
>>>that
>>>      
>>>
>>>>to provide an appropriate hint, etc. What is the variable name of the
>>>>submitted answer?
>>>>        
>>>>
>>>$submission=&EXT("user.resource.resource.$partid.$responseid.submission");
>>>      
>>>
>>That works. Is there a list of all the calls by the &EXT function? Or what 
>>is the systematic way of calling the function?
>>    
>>
>
>http://s10.lite.msu.edu/res/msu/albertel/test/ext_examples.problem
>
>It isn't exhaustive but it gives an idea of the range and scope and
>makes guessing what else is available possible.
>
>  
>
>>BTW: Why is it resource.resource?
>>    
>>
>
>A failure in communication between me and Gerd back in early 2000. :-)
>
>
>  
>