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decimal.Decimal.is_nan()

is_nan()

Return True if the argument is a (quiet or signaling) NaN and False otherwise.

Links:

https://docs.python.org/3.5/library/decimal.html#decimal.Decimal.is_nan

doc_python

2016-10-07 17:31:31

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decimal.Decimal.is_qnan() is_qnan() Return True if the argument is a quiet NaN, and False otherwise.

decimal.Decimal.is_snan() is_snan() Return True if the argument is a signaling NaN and False otherwise.

decimal.Decimal.is_normal() is_normal(context=None) Return True if the argument is a normal finite number. Return False if the argument is zero, subnormal, infinite or a NaN.

decimal.Decimal.is_signed() is_signed() Return True if the argument has a negative sign and False otherwise. Note that zeros and NaNs can both carry signs.

decimal.Decimal.is_zero() is_zero() Return True if the argument is a (positive or negative) zero and False otherwise.