Using WolframAlpha for a take-home exam Is it ethical to use WolframAlpha on a take-home exam for a math class? A couple qualifiers: this is a make-up exam where the original exam allowed for a scientific calculator but not a graphing/symbol-solving calculator.

The professor has made no other stipulations about the exam yet (no word on if it's the same rules as for regular exams or otherwise). He has simply just announced one will be given out.
Generally speaking, if a particular set of tools was permitted - in your case a scientific calculator but not a graphing calculator, I would assume those would be the only tools permitted.

This is especially true for tools, like Wolfram Alpha, that duplicate functionality of things that have been disallowed, like graphing calculators and calculators that can deal with symbolic notation.