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Real and complex behaviour of the base change function (was: The "cheta" function)
(08/17/2009, 04:01 PM)sheldonison Wrote: Jay, you confused me converting between base e to eta, instead of eta to e. I agree that the principles are the same, and the singularities seem to be fatal.
Sorry, in thinking back, I think I started with going from e to eta, because it seemed that we needed to be able to get both ways, and at heart we start by going from base e to eta, then using cheta, then going back to base e.

At any rate, there is value in both, which is easy to summarize: in order to graph contour lines for the conversion from eta to e, it is easier to look simply at the conversion from e to eta. This is, for example, the easiest way to graph contour lines for ln(z): just draw lines with exp(z), using constant real or imaginary parts as needed.

Likewise, working with the conversion from eta to e would be a simple and effective way to draw contour lines in the reverse conversion, from e to eta. Since I'm still working on graphs, and I need both directions anyway, it made sense to start with going from e to eta.
~ Jay Daniel Fox

Messages In This Thread
RE: Real and complex behaviour of the base change function (was: The "cheta" function - by jaydfox - 08/17/2009, 05:47 PM

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