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<h1 >ALCO</h1 >
<h2>Tools for algebraic combinatorics</h2>
<p>
1.1.2</p>
<p>
5 September 2025
</p>
</div >
<p><b>
Benjamin Nasmith
</b>
<br />Email: <span class="URL" ><a href="mailto:bnasmith@proton.me" >bnasmith@proton.me</a></span >
<br />Homepage: <span class="URL" ><a href="https://github.com/BNasmith/ " >https://github.com/BNasmith/</a></span >
</p>
<p><a id="X7AA6C5737B711C89" name="X7AA6C5737B711C89" ></a></p>
<h3>Abstract</h3>
<p>ALCO provides implementations in <strong class="pkg" >GAP</strong > of octonion algebras, Jordan algebras, and certain important integer subrings of those algebras. It also provides tools to compute the parameters of t-designs in spherical and projective spaces (modeled as manifolds of primitive idempotent elements in a simple Euclidean Jordan algebra). Finally, this package provides tools to explore octonion lattice constructions, including octonion Leech lattices.</p>
<p><a id="X81488B807F2A1CF1" name="X81488B807F2A1CF1" ></a></p>
<h3>Copyright</h3>
<p>© 2024 by Benjamin Nasmith</p>
<p>This package may be distributed under the terms and conditions of the GNU Public License Version 3 or (at your option ) any later version.</p>
<p><a id="X82A988D47DFAFCFA" name="X82A988D47DFAFCFA" ></a></p>
<h3>Acknowledgements</h3>
<p>This documentation was prepared using the <strong class="pkg" >GAPDoc</strong > package.</p>
<p><a id="X8537FEB07AF2BEC8" name="X8537FEB07AF2BEC8" ></a></p>
<div class="contents" >
<h3>Contents<a id="contents" name="contents" ></a></h3>
<div class="ContChap" ><a href="chap1.html#X7DFB63A97E67C0A1" >1 <span class="Heading" >Introduction</span ></a>
</div >
<div class="ContChap" ><a href="chap2.html#X7E7EE82D811283C0" >2 <span class="Heading" >Octonions</span ></a>
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap2.html#X7833529F8000FCAD" >2.1 <span class="Heading" >Octonion Algebras</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X81A45FA7806BF5AC" >2.1-1 <span class="Heading" >Octonion Filters</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X78767B4A7F44F77D" >2.1-2 OctonionAlgebra</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X87ABC5C38446DA89" >2.1-3 <span class="Heading" >Octavian Integers</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X7E4DEB1E7C7F2C1D" >2.1-4 OctonionE8Basis</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap2.html#X86E4523081C49806" >2.2 <span class="Heading" >Properties of Octonions</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X7CEAB1C67B22DA7E" >2.2-1 Norm</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X8794715F82DE210B" >2.2-2 Trace</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X7DA1C9FC867AE862" >2.2-3 ComplexConjugate</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X7FCF154F7BD4E4ED" >2.2-4 RealPart</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap2.html#X80488CD07C9B9BD7" >2.3 <span class="Heading" >Other Octonion Tools</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X7D66EA0A7C8036F6" >2.3-1 <span class="Heading" >Converting Octonion Vectors</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X85B2EBB27ED8A073" >2.3-2 VectorToIdempotentMatrix</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X83DFA8B38603F6D6" >2.3-3 WeylReflection</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap2.html#X7991AA0A852ABD60" >2.4 <span class="Heading" >Quaternion Tools</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X7F1D2B237E4AF7A6" >2.4-1 Norm</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X855FA7867B9D0A9E" >2.4-2 Trace</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X7A4069927811A5B7" >2.4-3 <span class="Heading" >Hurwitz Integers</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X78FF8724803E2AB4" >2.4-4 QuaternionD4Basis</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap2.html#X79CDD8757D97A598" >2.5 <span class="Heading" >Icosian Tools</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X87BAE3917C966AA5" >2.5-1 <span class="Heading" >Icosian Ring</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X7F4267A77E5F8547" >2.5-2 IcosianH4Generators</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X7C5123127E6FFFA7" >2.5-3 <span class="Heading" >GoldenModSigma</span ></a>
</span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap2.html#X816679827A2DC3D4" >2.6 <span class="Heading" >Other Integer Rings</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X87AE22947AC81C0E" >2.6-1 EisensteinIntegers</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap2.html#X82AA45BF87E1AE33" >2.6-2 KleinianIntegers</a></span >
</div ></div >
</div >
<div class="ContChap" ><a href="chap3.html#X7E13C2AE7DEAF62D" >3 <span class="Heading" >Simple Euclidean Jordan Algebras</span ></a>
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap3.html#X802D4E3380BC3177" >3.1 <span class="Heading" >Filters and Basic Attributes</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X878107A77FBFD00A" >3.1-1 <span class="Heading" >Jordan Filters</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X7D20807E8513CEE8" >3.1-2 <span class="Heading" >Jordan Rank</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X7CFD4EB480976FF8" >3.1-3 <span class="Heading" >Jordan Degree</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X80051D4E7B64E102" >3.1-4 Trace</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X844D03667EC7C372" >3.1-5 Determinant</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X83B5D76B87AEF802" >3.1-6 Norm</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X85D508B5853906E5" >3.1-7 GenericMinimalPolynomial</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap3.html#X7FBD095A7B884F7F" >3.2 <span class="Heading" >Jordan Algebra Constructions</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X7852050A81DEB9F4" >3.2-1 SimpleEuclideanJordanAlgebra</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X86C6713C8178A69F" >3.2-2 JordanSpinFactor</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X859F001D7CB6CBD8" >3.2-3 HermitianSimpleJordanAlgebra</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X800B48C383196E06" >3.2-4 JordanHomotope</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap3.html#X7B9397277AF7F920" >3.3 <span class="Heading" >The Albert Algebra</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X7A6AFFE07994B4A9" >3.3-1 AlbertAlgebra</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X860036647BB9325E" >3.3-2 AlbertVectorToHermitianMatrix</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X8385802B7AE842E6" >3.3-3 HermitianMatrixToAlbertVector</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap3.html#X7F03850D819127E2" >3.4 <span class="Heading" >The Quadratic Representation</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X79DF7566833EA9F9" >3.4-1 JordanQuadraticOperator</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X7B5ABEA7816F6258" >3.4-2 JordanTripleSystem</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap3.html#X7EA1D48F853C02F1" >3.5 <span class="Heading" >Additional Tools and Properties</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X7C236EB080D05CD4" >3.5-1 HermitianJordanAlgebraBasis</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X853480DC7F9B0BD7" >3.5-2 JordanMatrixBasis</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X7D167A057F3CB029" >3.5-3 HermitianMatrixToJordanVector</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X7B6084887C1C5AF1" >3.5-4 JordanAlgebraGramMatrix</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X806F76C07B315DE4" >3.5-5 JordanAdjugate</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap3.html#X7C82B2EB78CF9C17" >3.5-6 IsPositiveDefinite</a></span >
</div ></div >
</div >
<div class="ContChap" ><a href="chap4.html#X7B34D3B17F1B8391" >4 <span class="Heading" >Spherical and Projective Designs</span ></a>
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap4.html#X79A71E957D5B9755" >4.1 <span class="Heading" >Jacobi Polynomials</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X872DC5F085155040" >4.1-1 JacobiPolynomial</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7C78C3A57DDC372B" >4.1-2 <span class="Heading" >Renormalized Jacobi Polynomials</span ></a>
</span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap4.html#X83D7DAD082EAD26D" >4.2 <span class="Heading" >Jordan Designs</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X82BCF4BA84BDEE9E" >4.2-1 <span class="Heading" >Jordan Design Categories</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7FD006D77B3C98E2" >4.2-2 JordanDesignByParameters</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X82BB5F997B7B7B3A" >4.2-3 <span class="Heading" >Jordan Rank and Degree</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X87D80CFF7F4FD7D6" >4.2-4 JordanDesignQPolynomials</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X80A1BCF87B87D691" >4.2-5 JordanDesignConnectionCoefficients</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap4.html#X87DA51657F7EC947" >4.3 <span class="Heading" >Designs with an Angle Set</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X848E40D6842751A6" >4.3-1 IsJordanDesignWithAngleSet</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X78AC6815875A2024" >4.3-2 <span class="Heading" >Design Angle Sets</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X840BF5428457449B" >4.3-3 JordanDesignByAngleSet</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7923181A81406714" >4.3-4 JordanDesignNormalizedAnnihilatorPolynomial</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X85E104A27EC8435A" >4.3-5 JordanDesignNormalizedIndicatorCoefficients</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X85E1790D86685EAF" >4.3-6 IsJordanDesignWithPositiveIndicatorCoefficients</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X858B619F7E32D5EB" >4.3-7 JordanDesignSpecialBound</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap4.html#X803F6A9986E27413" >4.4 <span class="Heading" >Designs with Angle Set and Cardinality</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7F730A1C7FC9D987" >4.4-1 <span class="Heading" >Design Cardinality</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7CA9D3F585A7CBC3" >4.4-2 <span class="Heading" >Designs at the Special Bound</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X80BE4157859BAA6A" >4.4-3 JordanDesignAnnihilatorPolynomial</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7C7C5DEF86F051F4" >4.4-4 JordanDesignIndicatorCoefficients</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7C4ADEEA8355A774" >4.4-5 <span class="Heading" >Design Strength</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7DBF21947AB79F1B" >4.4-6 <span class="Heading" >Schemes and Tight Designs</span ></a>
</span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap4.html#X814E031B82F35E16" >4.5 <span class="Heading" >Designs Admitting a Regular Scheme</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X83501A01792752CC" >4.5-1 JordanDesignSubdegrees</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap4.html#X7EE9F8D97A51FBF9" >4.6 <span class="Heading" >Designs Admitting an Association Scheme</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X85F7CF2D7FDF58D7" >4.6-1 JordanDesignBoseMesnerAlgebra</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7F95AE4A7B7B5B2B" >4.6-2 JordanDesignBoseMesnerIdempotentBasis</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X851F03427CFDC513" >4.6-3 JordanDesignIntersectionNumbers</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X84E0CAFE83145B3F" >4.6-4 JordanDesignKreinNumbers</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X87C0A2067F13F01A" >4.6-5 JordanDesignFirstEigenmatrix</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7FC9FDCC7DD82286" >4.6-6 JordanDesignSecondEigenmatrix</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7FB944C182A2FBE3" >4.6-7 JordanDesignMultiplicities</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X7E7012EB7BFE889D" >4.6-8 DesignValencies</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap4.html#X788831797E45CE02" >4.6-9 JordanDesignReducedAdjacencyMatrices</a></span >
</div ></div >
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap4.html#X7A489A5D79DA9E5C" >4.7 <span class="Heading" >Examples</span ></a>
</span >
</div >
</div >
<div class="ContChap" ><a href="chap5.html#X7F6AA3C97E706F4F" >5 <span class="Heading" >Octonion Lattice Constructions</span ></a>
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap5.html#X86D2839985CED826" >5.1 <span class="Heading" >Gram Matrices and Octonion Lattices</span ></a>
</span >
<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X86B3BD9C84639A7E" >5.1-1 IsLeechLatticeGramMatrix</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X78F07E967C6779FF" >5.1-2 IsGossetLatticeGramMatrix</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X824D0D267A7C0765" >5.1-3 <span class="Heading" >Miracle Octad Generator (MOG) Coordinates</span ></a>
</span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X7C043B907EC1FE89" >5.1-4 IsOctonionLattice</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X7FCBD0FF7D8C0C19" >5.1-5 OctonionLatticeByGenerators</a></span >
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<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap5.html#X786A725B7ADE7BDE" >5.2 <span class="Heading" >Octonion Lattice Attributes</span ></a>
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<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X781F36A17CD9FDA6" >5.2-1 UnderlyingOctonionRing</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X8120692484549A5B" >5.2-2 OctonionGramMatrix</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X79113ABC7A39CFFB" >5.2-3 GeneratorsAsCoefficients</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X80B8907778F550EE" >5.2-4 LLLReducedBasisCoefficients</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X844164BC82764599" >5.2-5 <span class="Heading" >Octonion Lattice Dimension</span ></a>
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<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X7F4BF549811C33EA" >5.2-6 GramMatrix</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X825D41AE7A411640" >5.2-7 <span class="Heading" >Lattice Basis</span ></a>
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<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap5.html#X79F28E887AF17FFC" >5.3 <span class="Heading" >Octonion Lattice Operations</span ></a>
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<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X87BDB89B7AAFE8AD" ><code >5.3-1 \in</code ></a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X84CF857E83452B67" >5.3-2 ScalarProduct</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X7F68456883DCEE5D" >5.3-3 <span class="Heading" >Sublattice Identification</span ></a>
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<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap5.html#X83B4296D7A2F59F8" >5.3-4 <span class="Heading" >Lattice Vector Coefficients</span ></a>
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</div ></div >
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<div class="ContChap" ><a href="chap6.html#X86ED1AD579C62F21" >6 <span class="Heading" >Closure Tools</span ></a>
<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap6.html#X811639F384636DE8" >6.1 <span class="Heading" >Brute Force Method</span ></a>
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<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap6.html#X87E8AA6582245C3E" >6.1-1 Closure</a></span >
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<div class="ContSect" ><span class="tocline" ><span class="nocss" > </span ><a href="chap6.html#X7F865ED67CC5740F" >6.2 <span class="Heading" >Random Choice Methods</span ></a>
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<div class="ContSSBlock" >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap6.html#X78DC531B815591E8" >6.2-1 RandomElementClosure</a></span >
<span class="ContSS" ><br /><span class="nocss" > </span ><a href="chap6.html#X7A4675E27B489038" >6.2-2 RandomOrbitOnSets</a></span >
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<div class="ContChap" ><a href="chapBib.html" ><span class="Heading" >References</span ></a></div >
<div class="ContChap" ><a href="chapInd.html" ><span class="Heading" >Index</span ></a></div >
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