Multiline input

Two input types allow students to enter multipule lines. Each line must be a valid algebraic expression. The result in Maxima is a list of expressions, one for each line.

The syntax hint is initially processed as castext. This is then assumed to be a Maxima list and re-processed as a Maxima expression. If valid, STACK removes "noun" operators, e.g. nounand will be converted to and before the syntax hint is displayed. Therefore, you can add in a syntax hint of the form [2x+x=?]. This is unchanged by castext processing. It is a list, but the contents are not valid Maxima and so are just displayed.

Text area

This input allows the user to type in multiple lines, where each line must be a valid algebraic expression. STACK passes the result to Maxima as a list. Note, the teacher's answer and any syntax hint must be a list, of valid Maxima exprssions! If you just pass in an expression strange behaviour may result.

If the allowempty tag is used the student's answer will be [EMPTYANSWER] to ensure the type of the student's answer is always a list.

Equivalence reasoning input

The purpose of this input type is to enable students to work line by line and reason by equivalence. See the specific documentation for more information: Equivalence reasoning. Note, the teacher's answer and any syntax hint must be a list! If you just pass in an expression strange behaviour may result.

If the allowempty tag is used the student's answer will be [EMPTYANSWER] to ensure the type of the student's answer is always a list.