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[Axiom-developer] [#176 Factored Polynomials aren't differentiated corre

From: kratt6
Subject: [Axiom-developer] [#176 Factored Polynomials aren't differentiated correctly] Fix
Date: Tue, 21 Jun 2005 05:45:05 -0500

The mistake is in differentiate\$FR which currently reads::

    differentiate(u:%, deriv: R -> R) ==
      ans := deriv(unit u) * ((u exquo (fr := unit(u)::%))::%)
      ans + fr * (_+/[fact.xpnt * deriv(fact.fctr) *
       ((u exquo nilFactor(fact.fctr, 1))::%) for fact in factorList u])

It intends to use the formula

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