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-rw-r--r--src/ChangeLog7
-rw-r--r--src/algebra/files.spad.pamphlet7
-rw-r--r--src/algebra/lie.spad.pamphlet27
3 files changed, 20 insertions, 21 deletions
diff --git a/src/ChangeLog b/src/ChangeLog
index fb633d2b..c92b22d1 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,12 @@
2011-02-01 Gabriel Dos Reis <gdr@cs.tamu.edu>
+ * algebra/files.spad.pamphlet (Library): Remove assignment to Rep.
+ * algebra/lie.spad.pamphlet (AssociatedLieAlgebra): Likewise.
+ (AssociatedJordanAlgebra): Likewise.
+ (LieSquareMatrix): Likewise.
+
+2011-02-01 Gabriel Dos Reis <gdr@cs.tamu.edu>
+
* interp/nrunopt.boot (NRTgetLookupFunction): Explain reason for
non-extension.
diff --git a/src/algebra/files.spad.pamphlet b/src/algebra/files.spad.pamphlet
index 695db887..1e30c441 100644
--- a/src/algebra/files.spad.pamphlet
+++ b/src/algebra/files.spad.pamphlet
@@ -437,10 +437,9 @@ Library(): Join(TableAggregate(String, Any),Eltable(Symbol,Any)) with
++ \spad{lib}. It can later be extracted using the key \spad{k}.
== KeyedAccessFile(Any) add
- Rep := KeyedAccessFile(Any)
- library f == open f
- elt(f:%,v:Symbol) == elt(f, string v)
- setelt(f:%, v:Symbol, val:Any) == setelt(f, string v, val)
+ library f == per open f
+ elt(f:%,v:Symbol) == elt(rep f, string v)
+ setelt(f:%, v:Symbol, val:Any) == setelt(rep f, string v, val)
@
\section{License}
diff --git a/src/algebra/lie.spad.pamphlet b/src/algebra/lie.spad.pamphlet
index 3d78a057..d039c5ef 100644
--- a/src/algebra/lie.spad.pamphlet
+++ b/src/algebra/lie.spad.pamphlet
@@ -56,10 +56,9 @@ AssociatedLieAlgebra(R:CommutativeRing,A:NonAssociativeAlgebra R):
FiniteRankNonAssociativeAlgebra(R)
private ==> A add
- Rep := A
- (a:%) * (b:%) == (a::Rep) * $Rep (b::Rep) -$Rep (b::Rep) * $Rep (a::Rep)
- coerce(a:%):A == a :: Rep
- coerce(a:A):% == a :: %
+ (a:%) * (b:%) == per(rep a * rep b - rep b * rep a)
+ coerce(a:%):A == rep a
+ coerce(a:A):% == per a
(a:%) ** (n:PositiveInteger) ==
n = 1 => a
0
@@ -112,16 +111,13 @@ AssociatedJordanAlgebra(R:CommutativeRing,A:NonAssociativeAlgebra R):
FiniteRankNonAssociativeAlgebra(R)
private ==> A add
- Rep := A
- two : R := (1$R + 1$R)
- oneHalf : R := (recip two) :: R
+ oneHalf : R := recip(1$R + 1$R) :: R
(a:%) * (b:%) ==
- zero? two => error
- "constructor must no be called with Ring of characteristic 2"
- ((a::Rep) * $Rep (b::Rep) +$Rep (b::Rep) * $Rep (a::Rep)) * oneHalf
- -- (a::Rep) * $Rep (b::Rep) +$Rep (b::Rep) * $Rep (a::Rep)
- coerce(a:%):A == a :: Rep
- coerce(a:A):% == a :: %
+ characteristic$R = 2 => error
+ "constructor must not be called with Ring of characteristic 2"
+ per((rep a * rep b + rep b * rep a) * oneHalf)
+ coerce(a:%):A == rep a
+ coerce(a:A):% == per a
(a:%) ** (n:PositiveInteger) == a
@
@@ -155,8 +151,6 @@ LieSquareMatrix(n,R): Exports == Implementation where
FramedNonAssociativeAlgebra R) --with
Implementation ==> AssociatedLieAlgebra (R,SquareMatrix(n, R)) add
-
- Rep := AssociatedLieAlgebra (R,SquareMatrix(n, R))
-- local functions
n2 : PositiveInteger := n*n
@@ -185,8 +179,7 @@ LieSquareMatrix(n,R): Exports == Implementation where
convDM v ==
- sq := conv v
- coerce(sq)$Rep :: %
+ per(conv(v)::Rep)
basis() ==
n2 : PositiveInteger := n*n