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  1. Vector fields, introduction (video) | Khan Academy

    Vector fields let you visualize a function with a two-dimensional input and a two-dimensional output. You end up with, well, a field of vectors sitting at various points in two-dimensional space.

  2. Vector fields - Khan Academy

    Vector fields represent fluid flow (among many other things). They also offer a way to visualize functions whose input space and output space have the same dimension.

  3. Gradient and contour maps (video) | Khan Academy

    Explore the concepts of gradient and contour maps in multivariable calculus with this educational video tutorial.

  4. Divergence (article) | Khan Academy

    Interpret a vector field as representing a fluid flow. The divergence is an operator, which takes in the vector-valued function defining this vector field, and outputs a scalar-valued function …

  5. 3d vector field example (video) | Khan Academy

    See an example of how you can start to understand how the formula for a three-dimensional vector field relates to the way it looks.

  6. Formal definition of curl in two dimensions - Khan Academy

    One more feature of conservative vector fields Background: Conservative vector fields If F (x, y) is a conservative vector field, all line integrals over closed loops are 0 . Looking at the integral …

  7. 3d curl intuition, part 1 (video) | Curl | Khan Academy

    Because this, this is a scale of valued quantity and yet the vector field that I'm showing, with all these blue vectors indicating rotation, these are vectors. And because the rotation is …

  8. The gradient vector | Multivariable calculus (article) - Khan Academy

    The gradient stores all the partial derivative information of a multivariable function. But it's more than a mere storage device, it has several wonderful interpretations and many, many uses.

  9. Gradient and graphs (video) | Khan Academy

    Not vector fields in general, but gradient fields, and then again, only scalar-valued functions have gradient fields and the gradient usually doesn't directly give the slope (see the videos on …

  10. Fluid flow and vector fields (video) | Khan Academy

    A neat way to interpret a vector field is to imagine that it represents some kind of fluid flow.