Is Plus42 equation editor fully compatible with HP19 or HP17?

[nickapos]

I am reading an old book that contains some equations for HP19 and HP17 for realtors, does anyone know if the Plus42 equation builder is backwards compatible with those calculators?
Will I be able to use those equations?

Thanks

[Vincent Weber]

Absolutely. 100% compatibility, with every single subtle detail.
Just make sure to enable the "comp" mode to avoid some small side effects.

[nickapos]

(03-18-2023 11:38 AM)Vincent Weber Wrote:  Absolutely. 100% compatibility, with every single subtle detail.
Just make sure to enable the "comp" mode to avoid some small side effects.

Thank you very much
I am not using it in comp mode, but can enable it for this experiment.

[SlideRule]

Does this old book have a title?

BEST!
SlideRule

[nickapos]

(03-21-2023 03:51 PM)SlideRule Wrote:  Does this old book have a title?

BEST!
SlideRule

Yes it is this book https://literature.hpcalc.org/community/...ection.pdf

Unfortunately my knowledge of these tools is limited and I was not able to use these formulas as they are.

[SlideRule]

Thanks!

[DMaier]

I wonder if Edric Cane is still willing to type the program in for $25.

[nickapos]

(03-24-2023 03:51 AM)DMaier Wrote:  I wonder if Edric Cane is still willing to type the program in for $25.

Hahaha I am cheap so I used my iPhone OCR.
Unfortunately the formula does not work as is.

[rprosperi]

@nickapos - An anonymous member donated the following Solver code, which works fine in PLUS42. The problems you faced getting it to work are almost certainly 'typos' from the OCR (0 is an O, x is an X, etc.):

Code:

INCOME.PROJECTION/CANE:?CFAT=(RNT%+EXP%+VAC%+I%1+L(?IN1:IF(N1=0:0:12×L(?PM1:LN1÷USPV(I%1÷12:N1×12)​)-LN1+L(LN1:?PM1×USPV(I%1÷12:L(N1:N1-1)×12))))+?IN1+?TDS+I%2+L(?IN2:IF(N2=0:0:12×L(?PM2:LN2÷USPV(I%2÷12:N2×12))-LN2+L(LN2:?PM2×USPV(I%2÷12:L(N2:N2-1)×12))))+?IN2+L(NEXT:IF(G(?YR)>0:1:NEXT))+L(?NOI:L(RENT:RENT×L(A:(1+RNT%×.01)^NEXT))+L(OTHR:OTHR×G(A))-L(?VAC:RENT×VAC%×.01)-L(EXP:EXP×(1+EXP%×.01)^NEXT))+?VAC-L(?DEPR:IF(LIFE=0:0:BLD$÷ABS(LIFE)÷IF(G(?YR)>0 OR LIFE<0:1:24÷23)))+L(?TAX:TAX%×.01×L(?TXBL:-AJTXB+G(?NOI)-?IN1-?IN2-?DEPR))+L(?TDPR:?TDPR+?DEPR)+?TXBL)×0-?TAX+L(?CFBT:?NOI-L(?TDS:12×(?PM1+?PM2)))+(?CFBT+L(?YR:?YR+1))×0

Enjoy!

[nickapos]

(04-05-2023 09:28 PM)rprosperi Wrote:  @nickapos - An anonymous member donated the following Solver code, which works fine in PLUS42. The problems you faced getting it to work are almost certainly 'typos' from the OCR (0 is an O, x is an X, etc.):

Code:

INCOME.PROJECTION/CANE:?CFAT=(RNT%+EXP%+VAC%+I%1+L(?IN1:IF(N1=0:0:12×L(?PM1:LN1÷USPV(I%1÷12:N1×12)​)-LN1+L(LN1:?PM1×USPV(I%1÷12:L(N1:N1-1)×12))))+?IN1+?TDS+I%2+L(?IN2:IF(N2=0:0:12×L(?PM2:LN2÷USPV(I%2÷12:N2×12))-LN2+L(LN2:?PM2×USPV(I%2÷12:L(N2:N2-1)×12))))+?IN2+L(NEXT:IF(G(?YR)>0:1:NEXT))+L(?NOI:L(RENT:RENT×L(A:(1+RNT%×.01)^NEXT))+L(OTHR:OTHR×G(A))-L(?VAC:RENT×VAC%×.01)-L(EXP:EXP×(1+EXP%×.01)^NEXT))+?VAC-L(?DEPR:IF(LIFE=0:0:BLD$÷ABS(LIFE)÷IF(G(?YR)>0 OR LIFE<0:1:24÷23)))+L(?TAX:TAX%×.01×L(?TXBL:-AJTXB+G(?NOI)-?IN1-?IN2-?DEPR))+L(?TDPR:?TDPR+?DEPR)+?TXBL)×0-?TAX+L(?CFBT:?NOI-L(?TDS:12×(?PM1+?PM2)))+(?CFBT+L(?YR:?YR+1))×0

Enjoy!

Thank you very much Bob, yeah I assumed as much but as I am not experienced in RPN code, I could not debug it properly.