if __name__ == "__main__":
	exit("Oops! I can't be run like this!")

import math

class MathGuts(object):
	def __init__(self, A0, b, t, T, At):
		object.__init__(self)
		self.A0 = A0
		self.b = b
		self.t = t
		self.T = T
		self.At = At
	
	def calcA0(self):
		self.A0 = self.At / (self.b ** (self.t / self.T))
		return self.A0
	
	def calcb(self):
		self.b = (self.At / self.A0) ** (self.T / self.t)
		return self.b
	
	def calct(self):
		self.t = self.T * math.log((self.At / self.A0), self.b)
		return self.t
	
	def calcT(self):
		self.T = self.t / math.log((self.At / self.A0), self.b)
		return self.T
	
	def calcAt(self):
		self.At = self.A0 * (self.b) ** (self.t / self.T)
		return self.At