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Fix NumberFFVector documentation, add an example #3079

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Dec 4, 2018
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Fix NumberFFVector documentation, add an example #3079

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2 changes: 1 addition & 1 deletion lib/listcoef.gd
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@
#############################################################################
##
## <#GAPDoc Label="[1]{listcoef}">
## The following operations all perform arithmetic on row vectors.
## The following operations all perform arithmetic on row vectors,
## given as homogeneous lists of the same length, containing
## elements of a commutative ring.
## <P/>
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14 changes: 13 additions & 1 deletion lib/vecmat.gd
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Expand Up @@ -419,11 +419,23 @@ DeclareOperation( "ImmutableVector",[IsObject,IsRowVector]);
## <Oper Name="NumberFFVector" Arg='vec, sz'/>
##
## <Description>
## returns an integer that gives the position of the finite field row vector
## returns an integer that gives the position minus one of the finite field row vector
## <A>vec</A> in the sorted list of all row vectors over the field with
## <A>sz</A> elements in the same dimension as <A>vec</A>.
## <Ref Func="NumberFFVector"/> returns <K>fail</K> if the vector cannot be
## represented over the field with <A>sz</A> elements.
## <P/>
## <Example><![CDATA[
## gap> v:=[0,1,2,0]*Z(3);;
## gap> NumberFFVector(v, 3);
## 21
## gap> NumberFFVector(Zero(v),3);
## 0
## gap> V:=EnumeratorSorted(GF(3)^4);
## <enumerator of ( GF(3)^4 )>
## gap> V[21+1] = v;
## true
## ]]></Example>
## </Description>
## </ManSection>
## <#/GAPDoc>
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