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The solid ellipse has rotated relative to the dashed ellipse by the angle UCV, which equals (k−1) θ 1. All three planets (red, blue and green) are at the same distance r from the center of force C. It is required to make a body move in a curve that revolves about the center of force in the same manner as another body in the same curve at rest.
In mathematics, prolate spheroidal wave functions are eigenfunctions of the Laplacian in prolate spheroidal coordinates, adapted to boundary conditions on certain ellipsoids of revolution (an ellipse rotated around its long axis, “cigar shape“).
If it helps any, here are the problem and the answers the author and I got: The ellipse (x^2 / a^2) + (y^2 / b^2) = 1, a > b is rotated about the x-axis to form a surface called an ellipsoid. Find the surface area of this ellipsoid.
Prolate spheroidal coordinates μ and ν for a = 1.The lines of equal values of μ and ν are shown on the xz-plane, i.e. for φ = 0.The surfaces of constant μ and ν are obtained by rotation about the z-axis, so that the diagram is valid for any plane containing the z-axis: i.e. for any φ.
For example, to study the equations of ellipses and hyperbolas, the foci are usually located on one of the axes and are situated symmetrically with respect to the origin. If the curve (hyperbola, parabola , ellipse, etc.) is not situated conveniently with respect to the axes, the coordinate system should be changed to place the curve at a ...
When increases from zero, i.e., assumes positive values, the line evolves into an ellipse that is being traced out in the counterclockwise direction (looking in the direction of the propagating wave); this then corresponds to left-handed elliptical polarization; the semi-major axis is now oriented at an angle .
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