\documentclass{article} \usepackage{open-axiom} \begin{document} \title{\$SPAD/src/algebra cyclotom.spad} \author{The Axiom Team} \maketitle \begin{abstract} \end{abstract} \eject \tableofcontents \eject \section{package CYCLOTOM CyclotomicPolynomialPackage} <>= )abbrev package CYCLOTOM CyclotomicPolynomialPackage ++ This package \undocumented{} CyclotomicPolynomialPackage: public == private where SUP ==> SparseUnivariatePolynomial(Integer) LSUP ==> List(SUP) NNI ==> NonNegativeInteger FR ==> Factored SUP IFP ==> IntegerFactorizationPackage Integer public == with cyclotomicDecomposition: Integer -> LSUP ++ cyclotomicDecomposition(n) \undocumented{} cyclotomic: Integer -> SUP ++ cyclotomic(n) \undocumented{} cyclotomicFactorization: Integer -> FR ++ cyclotomicFactorization(n) \undocumented{} private == add cyclotomic(n:Integer): SUP == x,y,z,l: SUP g := factors factor(n)$IFP --Now, for each prime in the factorization apply recursion l := monomial(1,1) - monomial(1,0) for u in g repeat l := (monicDivide(multiplyExponents(l,u.factor::NNI),l)).quotient if u.exponent>1 then l := multiplyExponents(l,((u.factor)**((u.exponent-1)::NNI))::NNI) l cyclotomicDecomposition(n:Integer):LSUP == x,y,z: SUP l,ll,m: LSUP g := factors factor(n)$IFP l := [monomial(1,1) - monomial(1,0)] --Now, for each prime in the factorization apply recursion for u in g repeat m := [(monicDivide( multiplyExponents(z,u.factor::NNI),z)).quotient for z in l] for rr in 1..(u.exponent-1) repeat l := append(l,m) m := [multiplyExponents(z,u.factor::NNI) for z in m] l := append(l,m) l cyclotomicFactorization(n:Integer):FR == fr : FR := 1$FR for f in cyclotomicDecomposition(n) repeat fr := fr * primeFactor(f,1$Integer) fr @ \section{License} <>= --Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd. --All rights reserved. -- --Redistribution and use in source and binary forms, with or without --modification, are permitted provided that the following conditions are --met: -- -- - Redistributions of source code must retain the above copyright -- notice, this list of conditions and the following disclaimer. -- -- - Redistributions in binary form must reproduce the above copyright -- notice, this list of conditions and the following disclaimer in -- the documentation and/or other materials provided with the -- distribution. -- -- - Neither the name of The Numerical ALgorithms Group Ltd. nor the -- names of its contributors may be used to endorse or promote products -- derived from this software without specific prior written permission. -- --THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS --IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED --TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A --PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER --OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, --EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, --PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR --PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF --LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING --NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS --SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. @ <<*>>= <> <> @ \eject \begin{thebibliography}{99} \bibitem{1} nothing \end{thebibliography} \end{document}