HP 10bII - Page 130

130 B: More About Calculations
n Case 5.7KHFDOFXODWRUGLVSOD\VNo Solution7KHUHLVQRDQVZHU
7KLVVLWXDWLRQPLJKWEHWKHUHVXOWRIDQHUURUVXFKDVDPLVWDNHLQ
NH\LQJLQWKHFDVKIORZV$FRPPRQPLVWDNHWKDWUHVXOWVLQWKLV
PHVVDJHLVSXWWLQJWKHZURQJVLJQRQDFDVKIORZ$YDOLGFDVKIORZ
VHULHVIRUDQ,55<5FDOFXODWLRQPXVWKDYHDWOHDVWRQHSRVLWLYHDQG
RQHQHJDWLYHFDVKIORZ
Halting and Restarting IRR/YR
7KHVHDUFKIRU,55<5 PD\WDNHDUHODWLYHO\ORQJWLPH<RXFDQKDOWWKH
FDOFXODWLRQDWDQ\WLPHE\SUHVVLQJWKH
% NH\7KHPHVVDJHInterruptedLV
GLVSOD\HG3UHVVLQJ
R QRZGLVSOD\VWKHFXUUHQWHVWLPDWHIRU,55<5
<RXFDQUHVXPHWKHFDOFXODWLRQE\
n 3UHVVLQJ *!*9 ZKLOHWKHFXUUHQWHVWLPDWHLVGLVSOD\HGLQWKH
FDOFXODWRUOLQH7KLVFRQWLQXHVWKHFDOFXODWLRQIURPZKHUHLWOHIWRII
n 6WRULQJDJXHVVIRU,55<5GLVFXVVHGEHORZ
Entering a Guess for IRR/YR
7RHQWHUDJXHVVNH\LQDQHVWLPDWHRI,55<5DQGWKHQSUHVV
*!*9 <RXFDQHQWHUDJXHVVIRU,55<5DWWKHVHWLPHV
n %HIRUHEHJLQQLQJWKHFDOFXODWLRQ$IDLUO\DFFXUDWHJXHVVFDQUHGXFH
WKHWLPHUHTXLUHGWRFDOFXODWHDQDQVZHUDQGUHGXFHWKHFKDQFHRI
WKHFDOFXODWRUVROYLQJIRUDQXQGHVLUDEOHQHJDWLYHVROXWLRQ
n $IWHU\RX·YHLQWHUUXSWHGWKHFDOFXODWLRQ
n $IWHUWKHFDOFXODWRUKDVKDOWHGWKHFDOFXODWLRQGXHWRDQ\RIWKH
DIRUHPHQWLRQHGFDVHV+RZHYHUIRUFDVHVDQGQRRWKHU
VROXWLRQVZLOOEHIRXQG
:KHQFDOFXODWLQJ,55<5XVLQJDJXHVVWKHFDOFXODWLRQKDOWVZKHQLW
ILQGVDQDQVZHU+RZHYHUWKHUHPD\EHDGGLWLRQDOSRVLWLYHRUQHJDWLYH
DQVZHUVRUQRWUXHVROXWLRQDWDOO<RXFDQFRQWLQXHVHDUFKLQJIRU
DQRWKHUVROXWLRQE\KDOWLQJWKHFDOFXODWLRQDQGHQWHULQJDGLIIHUHQWJXHVV
2QHZD\WRREWDLQDJRRGJXHVVIRU,55<5LVWRFDOFXODWHWKH139IRU
YDULRXVLQWHUHVWUDWHV6LQFH,55<5LVWKHLQWHUHVWUDWHDWZKLFK139
HTXDOV]HURWKHEHVWHVWLPDWHRI, 55<5LVWKHLQWHUHVWUDWHWKDW\LHOGV
WKHYDOXHIRU139FORVHVWWR]HUR
appendix_B.fm Page 130 Thursday, June 22, 2000 12:33 PM