Caculating Compounded interest without double values

[Shirl Diva]

How would you calculate compound interest without being able to use any double values. There is also a need for an exponential value. How do I accomplish it. Help...anybody...
shirl

[Bill Liteplo]

Why can't you use doubles? What can you use, then? Ints, floats, perhaps Doubles?
Bill

[Dirk Schreckmann]

Shirl,
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Thanks Pardner! Hope to see you 'round the Ranch!

[Bill Liteplo]

treat all monetary amounts as integral numbers of pennies then, break
the result into its dollar and cents amount, via division and the modulus operator.

OK. That sounds not too bad.

int amountInCents, principal = 1000, rate = 5;
amountInCents = principal * Math.pow(1 + (rate/100), year);
int amountInDollars = amountInCents / 100;
int remainderInCents = amountInCents % 100;

The integer devision to calculate amountInDollars will always truncate.
The modulus operator ('%') will give the remainder.

Bill

[Shirl Diva]

Okay, I am going to try this % once again. I can't seem to get to work. It had to be in all ints - I can't use Math.pow without a double value. Thanks though