Definition of a critical point. Above the level of most students. useful for tutors.
MathWorld
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A helpful scientific calculator that runs in your web browser window.
Holt Online Learning
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Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
Paul's Online Math Notes
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JAVA Applet for plotting curves defined in rectangular or parametric form.
MIT
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Using parametric equations to define a curve in two or three dimensions and properties of parametric equations.
MIT
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differentiation formulas
StudyStack
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A website that lays out the theory of working with partial derivatives.
Mathworld Wolfram
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Gives detailed explanation on working with partial derivatives. This site also provides examples that students can work through and check.
Analyze Math
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