# Re: Ruby math.pow equivalent

**URL:** <https://www.ruby-forum.com/t/re-ruby-math-pow-equivalent/90615>\
**Category:** Ruby\
**Created:** [March 30, 2007, 12:00pm UTC](https://www.ruby-forum.com/t/re-ruby-math-pow-equivalent/90615 "2007-03-30T12:00:48Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![KandemS\_Vamshi\_Kris](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/90db22/32.png) [@KandemS\_Vamshi\_Kris](https://www.ruby-forum.com/u/KandemS_Vamshi_Kris)\
**Post date:** [March 30, 2007, 12:00pm UTC](https://www.ruby-forum.com/t/re-ruby-math-pow-equivalent/90615/1 "2007-03-30T12:00:48Z")

</div>

Hi john,

This the answer.

@principal\*@rate/(1-(1/(1+@rate))\*\*@payments )

Thanks  
VamshiK