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Decompose

Usage

Decompose[poly, x] 把一个多项式分解,如可能的话,为简单多项式的复合.


Notes

Decompose给出多项式  的列表,这些多项式能通过复合成  给出原多项式.
• 多项式  构成的集合没必要是唯一的.
• Decomposition是一个不依赖多项式的因式分解的运算. •参见 Mathematica 全书: 3.3.4节.
•同时参见: FactorList, Solve.
Further Examples

This polynomial can be rewritten in a variable that is a polynomial in the original variable.

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Here is a more complicated example. We first set up a triple composition.

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The functions in the decomposition are different from the three we started with, although in this case the degrees are the same.

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Recomposing the three new polynomials brings us back to the original composition.

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