Maple-graded code for list [1,2]


  • Global Moderator

    Problem:

    evalb( $ANSWER = $RESPONSE) 
    

    with $ANSWER set as [-1, 0.5] , grading code will return 0 when student answers it as [-1, 1/2].


    The reason for this is "evalb()". It performs a single, cursory comparison, therefore:

    evalb( 0.5 = 1/2 );      # returns 1 or true, because it's one step operation
    evalb( [0.5] = [1/2] );  # returns 0 of false, because it's a two step operation
    evalb( [0.5] = [0.5] );  # returns 1 or true, because it's one step operation
    


    Solutions:

    evalb( simplify( $ANSWER - $RESPONSE = [0.,0.] ) );  # 'quick and dirty'
    

    or

    andmap(evalb, `~`[`=`]($ANSWER, $RESPONSE));        # Maple "export" notation
    

    or

    andmap(evalb, $ANSWER=~$RESPONSE );                               # alternative notation

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