rotate(other, context=None) Return the result of rotating the digits of the first operand by an amount specified by the second

statistics.pstdev(data, mu=None) Return the population standard deviation (the square root of the population variance). See

copy_abs(x) Returns a copy of x with the sign set to 0.

is_finite(x) Returns True if x is finite; otherwise returns False.

numerator Numerator of the Fraction in lowest term.

next_plus(context=None) Return the smallest number representable in the given context (or in the current thread’s context if

quantize(exp, rounding=None, context=None) Return a value equal to the first operand after rounding and having the exponent

decimal.setcontext(c) Set the current context for the active thread to c.

statistics.mode(data) Return the most common data point from discrete or nominal data. The mode (when it exists) is

random.normalvariate(mu, sigma) Normal distribution. mu is the mean, and sigma is the standard deviation.