class decimal.InvalidOperation An invalid operation was performed. Indicates that an operation

cmath.pi The mathematical constant π, as a float.

random.randint(a, b) Return a random integer N such that a <= N <= b. Alias for randrange(a

clear_flags() Resets all of the flags to 0.

is_normal(context=None) Return

divide(x, y) Return x divided by y.

to_eng_string(x) Convert to a string, using engineering notation if an exponent is needed. Engineering

decimal.getcontext() Return the current context for the active thread.

numerator Abstract.

sqrt(x) Square root of a non-negative number to context precision.