Questions: list processing

[parisse]

Short answer: you should use .^ instead of ^ (or .* .+ .-) for list processing with CAS objects.
Explanation: ^ does call the so-called fast exponentiation algorithm. This algorithm initializes the result to 1 and does multiplications with the power basis to powers of 2, at some point you have therefore a scalar times a DOM_LIST object, and this is interpreted as a multiplication by a dense 1-d polynomial.