(11C) Solve for [i] given [n] [PMT] [FV]

[Dieter]

(04-13-2018 04:56 AM)Gamo Wrote:  This update solve for [i] with either group of three known variables.
[n] [PMT] [PV]
[n] [PMT] [FV]
...
Procedure: To solve [i]
input [n] [PMT] [PV] > GSB 1 (answer [i])
input [n] [PMT] [FV] > GSB 2 (answer [i])

Sounds a bit complicated, doesn't it ?-)

Why don't you simply take the usual approach with one single TVM equation which includes both PV and FV so that the interest rate can be calculated the same way for either case. That's a proven method since the days of the HP65. ;-)

Dieter