## Bug #2770 » matrix_det.diff

View differences:

lib/matrix.rb
661 661
`  #++`
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`  #`
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`  # Returns the determinant of the matrix.  If the matrix is not square, the`
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`  # result is 0. This method's algorithm is Gaussian elimination method`
664
`  # Returns the determinant of the matrix.`
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`  # This method's algorithm is Gaussian elimination method`
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`  # and using Numeric#quo(). Beware that using Float values, with their`
667 667
`  # usual lack of precision, can affect the value returned by this method.  Use`
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`  # Rational values or Matrix#det_e instead if this is important to you.`
......
671 671
`  #     => 45.0`
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`  #`
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`  def determinant`
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`    return 0 unless square?`
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`    Matrix.Raise ErrDimensionMismatch unless square?`
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`    size = row_size`
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`    a = to_a`
......
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`  alias det determinant`
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`  #`
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`  # Returns the determinant of the matrix.  If the matrix is not square, the`
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`  # result is 0. This method's algorithm is Gaussian elimination method.`
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`  # Returns the determinant of the matrix.`
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`  # This method's algorithm is Gaussian elimination method.`
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`  # This method uses Euclidean algorithm. If all elements are integer,`
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`  # really exact value. But, if an element is a float, can't return`
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`  # exact value.`
......
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`  #     => 63`
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`  #`
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`  def determinant_e`
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`    return 0 unless square?`
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`    Matrix.Raise ErrDimensionMismatch unless square?`
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`    size = row_size`
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`    a = to_a`