27 lines
503 B
Python
27 lines
503 B
Python
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"""
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Exceptions raised by the matrix module.
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"""
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class MatrixError(Exception):
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pass
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class ShapeError(ValueError, MatrixError):
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"""Wrong matrix shape"""
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pass
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class NonSquareMatrixError(ShapeError):
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pass
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class NonInvertibleMatrixError(ValueError, MatrixError):
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"""The matrix in not invertible (division by multidimensional zero error)."""
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pass
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class NonPositiveDefiniteMatrixError(ValueError, MatrixError):
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"""The matrix is not a positive-definite matrix."""
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pass
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