Math 2.0

concept

Formal derivative

Summary

The formal derivative of a polynomial is defined by the usual rule of calculus, (xn)′=nxn−1(x^n)' = n x^{n-1}, with no limits. It makes sense over every ring. The definition of the formal derivative gives the formula.

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Sources

  1. Web https://en.wikipedia.org/wiki/Formal_derivative, lead section

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