from cmath import log as complex_log  # used for complex numbers
from math import log


def t_summ():
	# Equivalent to summatory of 2*i from i=1 to i=5
	return sum(2*i for i in range(1,6))

def t_exponent(base, exponent):
	return base**exponent

def t_logarithm(n, base):
	 return log(n, base)

def t_complex_logarithm(n, base):
	return complex_log(n, base)

def t_compound_interest(input, interest, span, periods):
	return input * ((1 + (interest / periods))**(periods * span))

def t_compound_interest_algorigthm(input, interest, span, periods):
	result = input
	for _ in range(0, span):
		for _ in range(0, periods):
			result += result * (interest / periods)
	return result