quantize(x, y) Returns a value equal to x (rounded), having the exponent of y.

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

math.log1p(x) Return the natural logarithm of 1+x (base e). The result is calculated in a way which is accurate

log10(context=None) Return the base ten logarithm of the operand. The result is correctly rounded using the ROUND_HALF_EVEN

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