gives True if m is a unitary matrix, and False otherwise.

Details and OptionsDetails and Options

  • A matrix m is unitary if m.ConjugateTranspose[m] is the identity matrix.
  • UnitaryMatrixQ works for symbolic as well as numerical matrices.
  • The following options can be given:
  • NormalizedTruetest if matrix rows are normalized
    SameTestAutomaticfunction to test equality of expressions
    ToleranceAutomatictolerance for approximate numbers
  • For exact and symbolic matrices, the option SameTest->f indicates that two entries and are taken to be equal if gives True.
  • For approximate matrices, the option Tolerance->t can be used to indicate that the norm satisfying γt is taken to be zero where is the identity matrix.
Introduced in 2014
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