# Thread: Mortgage Monthly Payment Formula

1. Member
Join Date
Mar 2011
Posts
23
Rep Power
0

## Mortgage Monthly Payment Formula

Greetings Java Forums,

I have to create a method that calculates the mortgage monthly payment, using the following formula:

Loan Payment Formula

But I don't know how I'm supposed to write this in Java, specifically the power part.

How would I go about writing this formula in Java? Thanks again.

3. Member
Join Date
Mar 2011
Posts
23
Rep Power
0
Here is the formula:

4. What have you tried so far?

5. Senior Member
Join Date
Jun 2008
Posts
339
Rep Power
9
It's probably easiest to break it down into stages so you can check each stage is giving the right result, e.g. (pseudocode)
a = 1 + rate
b = Math.pow(a, months)
c = b - 1
d = rate / c
e = rate + d
f = e * principal

If that's too simple, you can combine steps together, as you see fit.

6. Member
Join Date
Mar 2011
Posts
23
Rep Power
0
Originally Posted by sunde887
What have you tried so far?
I basically typed out the formula without the power:

double monthlyInterestPayment=(0.0032 + (0.0032 / ((1 + 0.0032) - 1)) + 1800);

Originally Posted by dlorde
It's probably easiest to break it down into stages so you can check each stage is giving the right result, e.g. (pseudocode)
a = 1 + rate
b = Math.pow(a, months)
c = b - 1
d = rate / c
e = rate + d
f = e * principal

If that's too simple, you can combine steps together, as you see fit.
Thanks. I think I'll do something like that. I'll let you guys know if it works.

EDIT: Yep, it works. +rep to both of you guys.

Now I just have to figure out how to do the rest of this assignment!
Last edited by EpyonCustom; 04-28-2011 at 01:20 AM.

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•