math.fabs(x) Return the absolute value of x.

copy_sign(x, y) Copies the sign from y to x.

compare(x, y) Compares x and y numerically.

as_tuple() Return a named tuple representation of the number: DecimalTuple(sign

exception statistics.StatisticsError Subclass of

logical_and(other, context=None) logical_and() is a logical operation which takes two logical operands

class decimal.Underflow Numerical underflow with result rounded to zero. Occurs when a subnormal

is_zero(x) Returns True if x is a zero; otherwise returns False.

is_canonical(x) Returns True if x is canonical; otherwise returns False.

math.atanh(x) Return the inverse hyperbolic tangent of x.