Hi, I want to announce and share my humble finrb gem. (based on finance gem/FinCal R pkg) Any help/usage/commentary will be greatly appreciated. (I find it reasonable to announce it by now to this mailing list.) finrb - [RubyGems Page](https://rubygems.org/gems/finrb) - [Source Code](https://github.com/ncs1/finrb) - [Bug Tracker](https://github.com/ncs1/finrb/issues) ## What is this Ruby project? Ruby gem for financial calculations/modeling. finrb forked from the ruby [finance](https://github.com/Edward-Intelligence/finance) gem. - Uses the [flt](https://github.com/jgoizueta/flt) gem to ensure precision decimal arithmetic in all calculations. - Fixed-rate mortgage amortization (30/360). - Interest rates - Various cash flow computations, such as NPV and IRR. - Adjustable rate mortgage amortization. - Payment modifications (i.e., how does paying an additional $75 per month affect the amortization?) - Utils class provides basic financial calculation utilities (ported from R's [FinCal](https://github.com/felixfan/FinCal) library) ## What are the main difference between this Ruby project and similar ones? Maintained; and sadly there aren't other financial gems available.. even basic as this. Wish you all - all the best. Thanks, Nadir.