<html><head><title>The GAP 4 Manual - Full Index U</title></head> <body bgcolor="ffffff"><h1>The GAP 4 Manual - Full Index U</h1> <p> <a href="theindex.htm">_</A> <a href="indxA.htm">A</A> <a href="indxB.htm">B</A> <a href="indxC.htm">C</A> <a href="indxD.htm">D</A> <a href="indxE.htm">E</A> <a href="indxF.htm">F</A> <a href="indxG.htm">G</A> <a href="indxH.htm">H</A> <a href="indxI.htm">I</A> <a href="indxJ.htm">J</A> <a href="indxK.htm">K</A> <a href="indxL.htm">L</A> <a href="indxM.htm">M</A> <a href="indxN.htm">N</A> <a href="indxO.htm">O</A> <a href="indxP.htm">P</A> <a href="indxQ.htm">Q</A> <a href="indxR.htm">R</A> <a href="indxS.htm">S</A> <a href="indxT.htm">T</A> <a href="indxU.htm">U</A> <a href="indxV.htm">V</A> <a href="indxW.htm">W</A> <a href="indxX.htm">X</A> <a href="indxY.htm">Y</A> <a href="indxZ.htm">Z</A> <dl> <dt>u_N <a href="ref/CHAP018.htm#I22">R 18.4</a> <dt>UglyVector <a href="ref/CHAP059.htm#SSEC010.2">R 59.10.2</a> <dt>Umlauts <a href="ext/CHAP002.htm#SECT012">E 2.12</a> <dt>Unbind <a href="ref/CHAP004.htm#SSEC008.1">R 4.8.1</a> <dt>Unbind, for lists <a href="ref/CHAP021.htm#SSEC005.2">R 21.5.2</a> <dt>UnbindElmWPObj <a href="ext/CHAP007.htm#SSEC003.1">E 7.3.1</a> <dt>UnbindGlobal <a href="ref/CHAP004.htm#SSEC009.6">R 4.9.6</a> <dt>UnderlyingCharacteristic <a href="ref/CHAP069.htm#SSEC008.9">R 69.8.9</a> <dt>UnderlyingCharacterTable <a href="ref/CHAP070.htm#SSEC002.1">R 70.2.1</a> <dt>UnderlyingElement, fp group elements <a href="ref/CHAP045.htm#SSEC003.4">R 45.3.4</a> <dt>UnderlyingElement, fp semigroup elements <a href="ref/CHAP051.htm#SSEC003.4">R 51.3.4</a> <dt>UnderlyingElementOfReesMatrixSemigroupElement <a href="ref/CHAP049.htm#SSEC006.8">R 49.6.8</a> <dt>UnderlyingElementOfReesZeroMatrixSemigroupElement <a href="ref/CHAP049.htm#SSEC006.8">R 49.6.8</a> <dt>UnderlyingExternalSet <a href="ref/CHAP039.htm#SSEC011.16">R 39.11.16</a> <dt>UnderlyingFamily <a href="ref/CHAP061.htm#SSEC001.4">R 61.1.4</a> <dt>UnderlyingGeneralMapping <a href="ref/CHAP031.htm#SSEC002.10">R 31.2.10</a> <dt>UnderlyingGroup, for character tables <a href="ref/CHAP069.htm#SSEC006.1">R 69.6.1</a> <dt>UnderlyingGroup, for tables of marks <a href="ref/CHAP068.htm#SSEC007.7">R 68.7.7</a> <dt>UnderlyingLeftModule <a href="ref/CHAP059.htm#SSEC005.2">R 59.5.2</a> <dt>UnderlyingLieAlgebra <a href="ref/CHAP061.htm#SSEC007.6">R 61.7.6</a> <dt>UnderlyingMagma <a href="ref/CHAP063.htm#SSEC001.6">R 63.1.6</a> <dt>UnderlyingRelation <a href="ref/CHAP031.htm#SSEC002.9">R 31.2.9</a> <dt>Undocumented Variables <a href="ext/CHAP003.htm#SECT004">E 3.4</a> <dt>UnInstallCharReadHookFunc <a href="ref/CHAP010.htm#SSEC010.2">R 10.10.2</a> <dt>Union <a href="ref/CHAP028.htm#SSEC004.3">R 28.4.3</a> <dt>union, of collections <a href="ref/CHAP028.htm#I8">R 28.4</a> <dt>union, of sets <a href="ref/CHAP021.htm#I23">R 21.19</a> <dt>Union2 <a href="ref/CHAP028.htm#SSEC004.3">R 28.4.3</a> <dt>UnionBlist <a href="ref/CHAP022.htm#SSEC002.1">R 22.2.1</a> <dt>Unique <a href="ref/CHAP021.htm#SSEC020.4">R 21.20.4</a> <dt>UniteBlist <a href="ref/CHAP022.htm#SSEC003.1">R 22.3.1</a> <dt>UniteBlistList <a href="ref/CHAP022.htm#SSEC003.2">R 22.3.2</a> <dt>UniteSet <a href="ref/CHAP021.htm#SSEC019.6">R 21.19.6</a> <dt>Units <a href="ref/CHAP054.htm#SSEC005.2">R 54.5.2</a> <dt>Units and Factorizations <a href="ref/CHAP054.htm#SECT005">R 54.5</a> <dt>Univariate Polynomial Rings <a href="ref/CHAP064.htm#SECT015">R 64.15</a> <dt>Univariate Polynomials <a href="ref/CHAP064.htm#SECT005">R 64.5</a> <dt>Univariate Rational Functions <a href="ref/CHAP064.htm#SECT013">R 64.13</a> <dt>UnivariatenessTestRationalFunction <a href="ref/CHAP064.htm#SSEC005.5">R 64.5.5</a> <dt>UnivariatePolynomial <a href="ref/CHAP064.htm#SSEC005.1">R 64.5.1</a> <dt>UnivariatePolynomialByCoefficients <a href="ref/CHAP064.htm#SSEC005.2">R 64.5.2</a> <dt>UnivariatePolynomialRing <a href="ref/CHAP064.htm#SSEC015.1">R 64.15.1</a> <dt>UnivariateRationalFunctionByCoefficients <a href="ref/CHAP064.htm#SSEC013.1">R 64.13.1</a> <dt>Universal Enveloping Algebras <a href="ref/CHAP061.htm#SECT010">R 61.10</a> <dt>UniversalEnvelopingAlgebra <a href="ref/CHAP061.htm#SSEC010.1">R 61.10.1</a> <dt>UNIX, features <a href="ref/CHAP003.htm#I2">R 3.1</a> <dt>UNIX, options <a href="ref/CHAP003.htm#I4">R 3.1</a> <dt>UNIXSelect <a href="ref/CHAP010.htm#SSEC002.3">R 10.2.3</a> <dt>Unknown <a href="ref/CHAP019.htm#">R 19.0</a> <a href="ref/CHAP019.htm#">R 19.0</a> <dt>Unknowns <a href="ref/CHAP019.htm">R 19.0</a> <dt>UnloadSmallGroupsData <a href="ref/CHAP048.htm#SSEC007.9">R 48.7.9</a> <dt>UnorderedTuples <a href="ref/CHAP017.htm#SSEC002.5">R 17.2.5</a> <dt>Unpacking <a href="ref/CHAP073.htm#SECT003">R 73.3</a> <dt>UnprofileFunctions <a href="ref/CHAP007.htm#SSEC007.6">R 7.7.6</a> <dt>UnprofileMethods <a href="ref/CHAP007.htm#SSEC007.4">R 7.7.4</a> <dt>until <a href="ref/CHAP004.htm#I37">R 4.18</a> <dt>UntraceMethods <a href="ref/CHAP007.htm#SSEC003.2">R 7.3.2</a> <dt>UpdateMap <a href="ref/CHAP071.htm#SSEC003.7">R 71.3.7</a> <dt>UpEnv <a href="ref/CHAP006.htm#SSEC005.1">R 6.5.1</a> <dt>UpperCentralSeriesOfGroup <a href="ref/CHAP037.htm#SSEC017.12">R 37.17.12</a> <dt>UpperSubdiagonal <a href="ref/CHAP024.htm#SSEC011.2">R 24.11.2</a> <dt>Usage of the Percent Symbol <a href="ext/CHAP002.htm#SECT010">E 2.10</a> <dt>UseBasis <a href="ref/CHAP055.htm#SSEC003.6">R 55.3.6</a> <dt>UseFactorRelation <a href="ref/CHAP030.htm#SSEC013.3">R 30.13.3</a> <dt>Useful Categories for all Elements of a Family <a href="ref/CHAP030.htm#SECT015">R 30.15</a> <dt>Useful Categories of Elements <a href="ref/CHAP030.htm#SECT014">R 30.14</a> <dt>UseIsomorphismRelation <a href="ref/CHAP030.htm#SSEC013.2">R 30.13.2</a> <dt>User Streams <a href="ref/CHAP010.htm#SECT006">R 10.6</a> <dt>UseSubsetRelation <a href="ref/CHAP030.htm#SSEC013.1">R 30.13.1</a> <dt>Using buildman.pe <a href="ext/CHAP002.htm#SECT014">E 2.14</a> <dt>utilities for editing GAP files <a href="ref/CHAP006.htm#I17">R 6.11</a> </dl><p> [<a href="../index.html">Top</a>] [<a href="chapters.htm">Up</a>] <p><P> <address>GAP 4 manual<br></address> </body></html>