Vector moments
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Contour curves
[Equation] Note that the contour curves of a temperature field are called isotherms and the contour curves of a pressure field are called isobars. Example [Equation] [Equation] [Diagram goes here - download the original to see it.] A contour map is a map of a surface given by its contours. If we make a contour map by taking a constant interval between each contour; e.g. [Equation] where the difference between successive contours is always 10 units, then the rate of increase or decrease of a scalar field is related to the closeness of the contour curves. The closer the contour curves are together the faster the scalar field is changing [Equation]
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Contents of
Vector moments
1 Vector calculus - Scalar Field
2 Contour curves
3 Vector Field
4 Vector field lines
5 Differentiation of scalar and vector products.
6 The gradient of a scalar field
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