number_class(x) Returns an indication of the class of x.

canonical() Return the canonical encoding of the argument. Currently, the encoding of a Decimal instance is always

power(x, y, modulo=None) Return x to the power of y, reduced modulo modulo if given.

math.lgamma(x) Return the natural logarithm of the absolute value of the Gamma function at x.

is_qnan() Return

math.erf(x) Return the

is_snan(x) Returns True if x is a signaling NaN; otherwise returns False.

cmath.log(x[, base]) Returns the logarithm of x to the given base. If the base is not specified,

statistics.median(data) Return the median (middle value) of numeric data, using the common “mean of middle two” method. If data

random.shuffle(x[, random]) Shuffle the sequence x in place. The optional argument random is a 0-argument