TI BA 2 Plus and APR

[statusone]

Okay I just picked up the TI BA 2 Plus Pro and I am tripping balls because I can’t calculate the APR.
For example, the answer to the practice question 16 on page 307 of the Ethics text it tells you what to punch into the calc. I punch all those values in and when I try to calc APR I get Error 5.
Here’s what it looks like :
N = 12
%i compute = X
PV = 1000
FV = 1061.68
PMT = n/a (=0)
I just noticed too that anytime you don’t enter a value for PMT, the calc doesn’t play nice….

 

[hamada.smaili]

The PV has to be entered negative

 

[Frantelle]

FV=PMT= +/-
PV= opposite of above

 

[rawraw]

Make PV negative because it is a cash out flow. Make PMT and FV as positive, because they are cash inflows. Thinking of it that way makes it easy to keep signs correct.

 

[statusone]

Wow, thanks guys. You saved my life.
While learning about finance I have to learn about a totally new calculator.