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- Julia Set
- ---------
- Plots the Julia set corresponding to the equivalent Mandelbrot function.
- The initial zoom uses integer maths, then reverts to to a rather slower
- floating point. From the menu you can switch to the equivalent Mandelbrot -
- the current Real and Imaginary values are used to set the Mandelbrot x & y
- value for the centre of the image. Other options are as described under
- Mandelbrot.
-
- It is usually best to select a Julia from the equivalent Mandelbrot display.
- Trying to set cReal and cImaginary otherwise can be a slow process to get
- reasonable results. When switching to the Quaternion set, Quaternion q0 is
- set to cReal & q2 to cImaginary.
-
- When using functions other than Square, floating point is used much sooner
- so as to maintain accuracy.
-
- Algorithm: the Julia algorithm is essentially the same as for Mandelbrot,
- but with a different start point, namely:
-
- u=x
- v=y
- x=cReal
- y=cImaginary
-