finance 2.0.0
The finance library provides a Ruby interface for working with interest rates, mortgage amortization, and cashflows (NPV, IRR, etc.).
          Gemfile:
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          installieren:
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      Runtime Abhängigkeiten (1):
            flt
            >= 1.3.0
          
    Development Abhängigkeiten (2):
            activesupport
            >= 4.0.0
          
          
            minitest
            >= 4.7.5