I have to agree with Hugo here, if the question is overly complicated involving long "unreadable" calculations, then it's going to send most people I would imagine down the path to the dark side.
Especially, as pointed out, if it is unnecessary for the lesson.
ps. Sorry, I cheated too... :Whistling:
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[font="Comic Sans MS"]"The difficult tasks we do immediately, the impossible takes a little longer"[/font]