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This article mainly explains "how to solve the problem of Python BUG". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to solve the problem of Python BUG.

TypeError: unsupported operand type (s) for ^: 'float' and' int'

Solution: change the multiplier sign ^ to * *

TypeError: type numpy.ndarray doesn't define _ _ round__ method

Solution: change round () to np.round ()

TypeError: ufunc 'bitwise_xor' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule' 'safe''

Solution: change ^ to * *

TypeError: only size-1 arrays can be converted to Python scalars

Solution: change math.exp to np.exp ()

Reason: sigma is the matrix of numpy and needs to be handled by numpy.exp

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