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Formula in array or hash

by Zak Zarychta - Monday, 8 August 2011, 11:55 AMNumber of replies: 1

Is there a way of stuffing WeBWork formulae into an array or hash to be read by the answer checker ie

Context("Numeric"); Context()->variables->are(a=>'Real',b=>'Real',c=>'Real',d=>'Real'); $a=Formula( a * ( b - c) + d ); $b=Formula( (a * b) - (c + d) ); $c=Formula( a * ((b - c) + d) );

@ans=($a,$b,$c);

foreach my $answers( @ans ) { ANS( $answers->cmp() ); }

I do things like this fairly regularly, so the answer should be "yes." You may run into trouble with localizing the answer in the loop, however; I've found in some cases localizing a variable in a PG file causes it to be unavailable to the executing environment.