eharetea

Formulas for compounding interest, and doubling investments.

Invest in mathematics!

Date Created:Monday January 22nd, 2007 08:29 AM
Date Modified:Saturday August 02nd, 2008 12:17 PM

Compound Interest Formula:
A = P(1 + r/n)^nt
Continuous Compounding:
A = Pe^rt

Present Value Formulas
P = A(1 + r/n)^-rt
A = Ae^-rt


Doubling an Investment

2P = P(1 + r/n)^rt
2 = (1 + r/n)^rt