My HP 10bII+ is much faster than HP 12c!

[Albert Chan]

(01-07-2020 02:48 AM)lrdheat Wrote:  If, however, I enter a N that is identical to an N that appears in the command line when I choose “edit”, and solve for i, it throws the many or no solutions error. This is true for all values that I experimented with. What am I not seeing here?

We have N+1 cash flows: PV , PMT × (N-1) , FV+PMT

If the cash flows has more than one sign changes, you may have multiple roots for rate, see post #19

Unlike my example, sometimes solved rates are close to each other.

Example, for N=30, PV=6500, PMT=-1000, FV=50000, we have I = 8.96% or 11.10%

Does anyone knows what returns should be reported for above investments ?