|Re: 20b IRR "ON [right-arrow] Stop" Error|
Message #2 Posted by cyrille de Brebisson on 26 Sept 2008, 9:11 a.m.,
in response to message #1 by Cinealta
I am trying to identify an error which I received on my 20b. I entered a non-conventional cash flow, with a single change of sign, and when IRR was pressed, I received the message: "ON [right-arrow] Stop."
Does anyone know what this error message is as could not find it in my 20b manual. Thanks for your kind help!
Yes, I know what that means :-)
the ON->STOP message appears each time you perform a 'long' iterative calculation such as a TVM I, BOND YTM, ICONV P/YR or IRR calculation and the algorithm loops more than 20 times.
since in most cases the algorythm will find the solution faster than that, you will not see this message. However, in some 'strange' cases, the algorythm will take a LONG time to find a solution if ever. The ON key can then be used to 'stop'/'cancel' the calculation. This error message (ON->STOP) is here in order to: 1 tell you that the algorythm is still looking for an answer and 2: remind you that you can cancel the calculation if no solution seems to be found.
now, I am interested in knowing what values you used for the cash flow in order to see if it's normal for the algorythm not to find a solution, or if there is something wrong with it.