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Topic:
6) Is Wolfgang Rautenberg, Gerhard Ringel, Peter Roquette also trying to teachspread fakemath like Franz? For Conic is Oval, never ellipse (proofs provided)
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Last Post:
Oct 6, 2017 3:10 PM



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Re: 6) Is Wolfgang Rautenberg, Gerhard Ringel, Peter Roquette also trying to teachspread fakemath like Franz? For Conic is Oval, never ellipse (proofs provided)
Posted:
Oct 6, 2017 3:10 PM


On Friday, October 6, 2017 at 10:53:27 AM UTC+2, Archimedes Plutonium wrote:
Ellipse:
> c_1X^2 + c_2Y^2  1 = 0
Right, Archie.
Sometimes you will find it written the following way:
x^2/a^2 + y^2/b^2 = 1 .
"The shape parameters a, b are called the semi major axis and semi minor axis."
Hint: "It follows from the equation that the ellipse is symmetric with respect to both of the coordinate axes and hence symmetric with respect to the origin."
Source: Wikipedia



