Sorry forgot to include problem 7 (which is your one!).
N = 10, PV = -100, PMT = 10, FV = 1.e-10, P/YR = 12, solve for i.
Code:
| calculator | 7 |
|-----------------------------|------------------------------------------|
| HP-80 | ERR |
| HP-70 | ERR |
| HP-27 | ERR |
| HP-22 | ERR |
| HP-41CX Financial Decisions | 0 |
| HP-92 | 0 |
| HP-37E | 0 |
| HP-38E | 0 |
| HP-12c | 2.181818182e-10 |
| HP-12cp | 2.18181818182e-10 |
| HP-12c comma | ERR |
| HP-10bII+ | 2.16e-10 |
| HP-17B | 2.16987100416e-10 |
| HP-17BII | 2.16e-10 |
| HP-17BII+ mk1 | 2.16e-10 |
| HP-17BII+ mk2 | 2.16e-10 |
| HP-19BII | 2.16e-10 |
| HP-20b | 2.16e-10 |
| HP-30b | 2.16e-10 |
| HP-50G | 2.16278831114e-10 |
| HP Prime 2.1.14730 | 2.16e-10 |
| Casio FC-200 | 2.181818182e-10 |
| Sharp EL-735 | 0 |
| Sharp PC-1403H HPF 188177 | 0 |
| Sharp PC-1421 | 0 |
| Victor V12 | ERR |
| BWK Business | 0 |
| RPN83P v0.9.0 | 2.2191952055123e-10 |
| RPN83P v0.12.0 RC2 | 2.1818181818159e-10 |
| RPN83P v0.12.0 | 2.1818181818159e-10 |
| TI-83 Plus | 2.181818181858e-10 |
| TI BA II Plus Professional | 2.181818e-10 |
| NSTK TVM V5 | 2.181818181976061618063772094675914e-10 |
| NSTK TVM V6 | 2.181818181815801652892599238858506e-10 |
| Plus42 1.1.9 | 2.181818181815801652892155741905381e-10 |
| C47 1531f1cb2 | 2.181818181815806921160850718651876e-10 |
| C47 eadc4507f | 2.18181818181580062818816748324244e-10 |
| NSTK TVM V8 | 2.181818181815801652892599238858506e-10 |
| R Rmpfr | 2.1818181818158016528925658782870022e-10 |
| Ref | 2.1818181818158016528925658782870022e-10 |
| WP43 0.25.2 | 2.181818181815806921160850718651876e-10 |
| Casio FC-100V | ERR |
| Casio FC-200V | ERR |