Groups > comp.soft-sys.math.mathematica > #16624

What's in an expression?

From	sam.takoy@yahoo.com
Newsgroups	comp.soft-sys.math.mathematica
Subject	What's in an expression?
Date	2014-03-10 08:38 +0000
Message-ID	<lfjtmt$hj2$1@smc.vnet.net> (permalink)
Organization	Time-Warner Telecom

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Hi all,

I'm building a little Mathematica system that checks answers entered by students. Suppose the question is "what is Sin'[x]?" ad the student responds: Sin'[x] which is "correct", but not the intended answer (Cos[x]). I'm wondering if there is a general way to approach this sort of problem. In particular, is there a way to find out whether a given expression includes certain elements (like Derivative)?

Thank you in advance,

Sam

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What's in an expression? sam.takoy@yahoo.com - 2014-03-10 08:38 +0000
  Re: What's in an expression? "Nasser M. Abbasi" <nma@12000.org> - 2014-03-11 07:16 +0000
  Re: What's in an expression? David Bailey <dave@removedbailey.co.uk> - 2014-03-17 06:27 +0000

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