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

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

math.log10(x) Return the base-10 logarithm of x. This is usually more accurate than log(x, 10).

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

math.cos(x) Return the cosine of x radians.

next_plus(x) Returns the smallest representable number larger than x.

min(other, context=None) Like min(self, other) except that the context rounding rule is applied before returning

cmath.e The mathematical constant e, as a float.

conjugate() Just returns self, this method is only to comply with the Decimal Specification.

is_infinite() Return