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Triangular Matrices

Triangular Matrices

Triangular matrices

Unit-triangular matrices have ones on the diagonal

Properties

  • Inverse of upper (lower) is upper (lower)
  • Product of two upper (lower) matrices is upper (lower)
  • Inverse of unit upper (lower) is also unit upper (lower)
  • Product of two unit upper (lower) matrices is also unit upper (lower)

Sources