Newton's Method and Self-similarity
Douglas J. Ingalls
(1934-1999)
Convergence of Newton's method to Square Root of 1
One of the more simpler concepts in chaos is Newton's method
(frequently called the Newton method) for finding roots of
equations. In an analysis by A. Cayley, he found that initial or starting
values which were negative converged to -1 (the white pixel in the center
of the small red dot on the left in the figure above) while intial or
starting value which were positive converged to +1 (the white pixel inside
the small red dot on the right). Values on the axis corresponding to
x = 0 + ai, did not converge to either, and were considered as a poor choice
of the initial value. With the advent of the digital computer our knowledge
has expanded and it was realized that the concepts of chaos could
be extended to the Newton method and are prevalent in this simple case.
The results presented here are the part of an ongoing investigation
and as new results are determined this site will be updated.
The tutorials are adequate to explain the Newton Method and no effort
will be made to present duplicate what can be readily found on the internet.
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