(11C) TVM for HP-11C

[Dave Britten]

The May 1980 PPC Journal has a brief description of how the original 29C version works. A short excerpt:

Quote:All calculations call on LBL 6 placing the following results in the stack: X: PV, Y: -(BAL or FV)(1+i)^-N, L: PMT(A)[1-(1+i)^-N]/i. I(%) = 100i is found by a rearranged version of the John Kennedy and Chris Stevens Newton's method program (V6N5P10) and may take up to a couple of minutes to solve.

Also, I've used this on my 11C a couple of times. It's an excellent program.