
Changes

0.57 (2002.03.16)

 ¡¦ New class
     ¢¢ Set
     ¢¢ Map
     ¢¢ Group
     ¢¢ PermuationGroup
     ¢¢ AlgebraicExtensionField
   
 ¡¦ New methods
     ¢¢ Galois#group
     ¢¢ Polynomial#splitting_field
   
 ¡¦ Rename MinimalDecompositionField to decompose
 ¡¦ Move *.rb to lib/
 ¡¦ Define Polynomial.to_ary and MPolynomial.to_ary

0.56 (2002.02.06)

 ¡¦ MPolynomial#with_ord
 ¡¦ Orderings belong to MPolynomial.
 ¡¦ MIndex is not a subclass of Array, now.
 ¡¦ "Integer < Numeric" ==> "Integer"

0.55 (2001.11.15)

 ¡¦ Improve Algorithm of Factorization over algebraic fields

0.54 (2001.11.05)

 ¡¦ Elementary Divisor
 ¡¦ Jordan Form
 ¡¦ Minimal Decomposition Field

0.53 (2001.10.03)

 ¡¦ move "MatrixAlgebra" to "Algebra::MatrixAlgebra"
 ¡¦ move "MatrixAlgebra::Vector" to "Algebra::Vector"
 ¡¦ move "MatrixAlgebra::Covector" to "Algebra::Covector",
 ¡¦ move "MatrixAlgebra::SquareMatrix" to "Algebra::SquareMatrix"

0.52 (2001.09.22)

 ¡¦ One-variate polynomial
     ¢¢ Fundamental operations (addition, multiplication, quotient/remainder,
        ...)
     ¢¢ factorization
   
 ¡¦ Multi-variate polynomial
     ¢¢ Fundamental operations (addition, multiplication, ...)
     ¢¢ factorization
     ¢¢ Creating Groebner-basis, quotient/remainder by Groebner-basis.
   
 ¡¦ Algebraic systems
     ¢¢ Creating quotient fields
     ¢¢ Creating residue class fields
     ¢¢ Operating matrices.
   
 ¡¦ Linear Algebra
     ¢¢ Diagonalization of Symmetrix Matrix
   

0.40 (2001.03.03)

 ¡¦ Initial Version

