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