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