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-rw-r--r--src/algebra/catdef.spad.pamphlet8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/algebra/catdef.spad.pamphlet b/src/algebra/catdef.spad.pamphlet
index 4e077bec..3cf7aab9 100644
--- a/src/algebra/catdef.spad.pamphlet
+++ b/src/algebra/catdef.spad.pamphlet
@@ -1086,7 +1086,7 @@ LeftModule(R:Rng):Category == Join(AbelianGroup, LeftLinearSet R)
)abbrev category LINEXP LinearlyExplicitRingOver
++ Author:
++ Date Created:
-++ Date Last Updated: June 14, 2010
+++ Date Last Updated: June 18, 2010
++ Basic Functions:
++ Related Constructors:
++ Also See:
@@ -1101,6 +1101,12 @@ LinearlyExplicitRingOver(R:Ring): Category == LeftModule R with
++ with coefficients in \spad{R} such that the system of equations
++ \spad{c1*v1 + ... + cn*vn = 0$%} has the same solution as
++ \spad{c * M = 0} where \spad{c} is the row vector \spad{[c1,...cn]}.
+ reducedSystem: (Vector %,%) -> Record(mat: Matrix R,vec: Vector R)
+ ++ \spad{reducedSystem([v1,...,vn],u)} returns a matrix \spad{M}
+ ++ with coefficients in \spad{R} and a vector \spad{w} such
+ ++ that the system of equations \spad{c1*v1 + ... + cn*vn = u}
+ ++ has the same solution as \spad{c * M = w} where \spad{c}
+ ++ is the row vector \spad{[c1,...cn]}.
reducedSystem: Matrix % -> Matrix R
++ reducedSystem(A) returns a matrix B such that \spad{A x = 0} and \spad{B x = 0}
++ have the same solutions in R.