Rule of 72
The time required for a given Principal to double (assuming 
Conversion Period) for CompoundInterest is given by solving
 | (1) |
 | (2) |
 | (3) |
(left plot) and difference between actual and time calculated using the rule of72 (right plot) as a function of the interest rate 
.See also Compound Interest, Interest
References
Avanzini, J. F. Rapid Debt-Reduction Strategies. Fort Worth, TX: HIS Pub., 1990.
- Anderson-Darling Statistic
- Andrews Cube
- Nilpotent Lie Group
- Nilpotent Matrix
- Nim
- Nim-Heap
- Nim-Sum
- Nim-Value
- n-in-a-Row
- Nine-Point Center
- Nine-Point Circle
- Nine-Point Conic
- Nint
- Nint Zeta Function
- Nirenberg's Conjecture
- Niven Number
- Niven's Constant
- n-minex
- Nobbs Points
- Noble Number
- Node (Algebraic Curve)
- Node (Fixed Point)
- Node (Graph)
- Noetherian Module
- Noetherian Ring