I am an undergraduate studying multivariable Calculus. However I have difficulty visualizing concepts. In single variable calculus I can visualize stuff, for example when one talks about derivatives, I can see the tangent line etc. In multivariable, I can prove that gradient is perpendicular to the level curves, but If I have a graph of a function, I can't visualize gradient in every single point. Is there a computer program for this issue? Do I have to learn something like Mathematica or are there another options?
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This question is not appropriate for this site, but I would, in fact, suggest "learning something like Mathematica", since this will serve you in good stead for years to come. – Igor Rivin May 16 '14 at 18:59
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I could imagine an improved version of this question at http://matheducators.stackexchange.com/ – abatkai May 16 '14 at 20:01