Nested Scheme (Help, I need a definition/explanation)

by Atran
Tags: definition, math, nested cheme
Atran is offline
Jun24-10, 08:23 AM
P: 82
Hi, I'm reading about polynomials and I've encountered a method called nested scheme.
The tragedy is that my math book usually has no rigorous definitions and sometimes lacks definitions.
My book is only stating that nested scheme is a method for evaluating polynomials, and thereafter it continues with two examples. It does not provide an explanation.

I cannot find any proper link, for nested scheme, in google. Can you teach me the very basics, and that should be sufficient for the understanding of more advanced topics...
Thanks for help...
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Mark44 is online now
Jun24-10, 09:38 AM
P: 20,997
This sounds like something that is called Horner scheme, a technique for evaluating polynomials efficiently.

For example, f(x) = 2x3 - 6x2 + 2x - 1 can be rewritten as f(x) = x(x(2x - 6) + 2) - 1.

More information here -
Atran is offline
Jun25-10, 12:21 PM
P: 82

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