Comments on: Vector Calculus: Understanding the Gradient http://betterexplained.com/articles/vector-calculus-understanding-the-gradient/ Learning shouldn't hurt. Let's share the insights that made difficult ideas click. Mon, 15 Mar 2010 12:04:03 +0000 http://wordpress.org/?v=2.8.4 hourly 1 By: Kalid http://betterexplained.com/articles/vector-calculus-understanding-the-gradient/#comment-272626 Kalid Wed, 17 Feb 2010 01:57:27 +0000 http://betterexplained.com/articles/vector-calculus-understanding-the-gradient/#comment-272626 @prabu: Glad it helped! @prabu: Glad it helped!

]]> By: prabu http://betterexplained.com/articles/vector-calculus-understanding-the-gradient/#comment-272598 prabu Tue, 16 Feb 2010 10:25:12 +0000 http://betterexplained.com/articles/vector-calculus-understanding-the-gradient/#comment-272598 thank you kalil. wonderful explanation. thank you kalil. wonderful explanation.

]]> By: Mark Soric http://betterexplained.com/articles/vector-calculus-understanding-the-gradient/#comment-264837 Mark Soric Sat, 12 Dec 2009 16:03:01 +0000 http://betterexplained.com/articles/vector-calculus-understanding-the-gradient/#comment-264837 Just wondering something. In that case of f(x,y) = X^2 + y^2, a paraboloid - how can the gradient by perpendicular to the tangent plane at all point and only have components in x and y... gradF(X,Y) = 2x + 2y How can it point in any other direction other than parallel to the xy plane? I'm lost here. Just wondering something. In that case of f(x,y) = X^2 + y^2, a paraboloid – how can the gradient by perpendicular to the tangent plane at all point and only have components in x and y…

gradF(X,Y) = 2x + 2y

How can it point in any other direction other than parallel to the xy plane?

I’m lost here.

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