PC-1211, PC-1250, etc. TVM

[nickapos]

(06-09-2024 01:22 PM)rprosperi Wrote:  

(06-08-2024 09:21 PM)robve Wrote:  [snip]

If you want another bewildering TVM problem:
B=1 (begin mode)
N=40
PV=900
PMT=1000
FV=-1000
What's the interest rate?

In the real world this makes no sense, i.e. getting rich for nothing in return, but mathematically it is a valid TVM problem to solve. Try it on a calculator. Is the rate you get a whole number?

- Rob

Using an HP-27S, I get -50 exactly.

Prime v1 with latest firmware also returns -50