On Thu, Apr 12, 2012 at 6:55 AM, Dave <dfx1@xxxxxxxxxxxxxx> wrote:
I am now having to reproduce the EXCEL PMT function
in RPG. Maybe someone has already done this?

I'm sure it's been done thousands of times by now. ;) But it's
probably squirreled away in thousands of ad-hoc programs.

Anyway, I've been given a formula to code and an
EXCEL spreadsheet to control my results.

Which I've coded like this :

    MonthlyRate = interestRate /12;
     MonthlyPayment = ( LoanAmount / MonthlyRate ) *  ( 1 - ( 1 +
MonthlyRate ) ** ( -1  * numberOfPayments ));

I think we may have bigger problems here than whether to use decimals
or floats. Are you sure that's the formula?

(I haven't looked carefully at the LoanRemaining calculation, but I
figure it's better to concentrate on one formula at a time in any
case.)

John

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