The finance library provides a Ruby interface for working with interest rates, mortgage amortization, and cashflows (NPV, IRR, etc.).

Library to easily use the API of http://figo.io

Floating-Point Formats

The financial calculator library provides a Ruby interface for performing common financial calculations (NPV, IRR, etc.).

Ruby gem to deal with financial calculations.

The finrb library (forked from the finance gem) provides a Ruby interface for financial calculations/modeling. Working with interest rates, Mortgage amortization, Cashflows (NPV, IRR, etc.) and other basic utilities.

Convert bytesizes into a human-readable format Either uses decimal byte prefixes or prefixes based on powers of 2 (Ki, Mi, etc.).

Control of IEEE compliant FPUs rounding mode and precision

Numeric input/output

Number formatting and reading.

Decimal type similar to Python's, following General Decimal Arithmetic Specification and IEEE 754-2008

This numeric solver is an example of the use of Flt.