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

[ijabbott]

(01-05-2020 10:37 PM)Albert Chan Wrote:  Can HP 10bII+ solve this, for I ? (PV and FV having the same sign)

N = 30
PV = 1000
FV = 50000
PMT = -1000

My vintage HP-12C failed, with Error 5
Tried it with emu48 HP50g finance apps, it failed too, "Error: many or no solutions"

TI BA-35 Solar solved it with no problem, returning 3.65%

The HP 10bII+ doesn't solve it. Neither does the HP Prime, nor the Casio fx-CG50. The TI Nspire does solve it.