API Reference finance v#1.4.1

Financial calculations for cash-flow analysis, time value of money, depreciation, and risk.

Fixed income: pricing a bond, solving for its yield, and the standard risk metrics (Macaulay and modified duration, convexity).

Discounting a series of cash flows: net present value (npv/2, xnpv/2) and internal rate of return (irr/1, xirr/2, mirr/3).

Writing an asset down from its cost to its salvage value over its life.

Converting between the different ways an interest rate can be quoted.

Performance and risk metrics.

The root-finding strategy behind the rate functions (Finance.CashFlow.irr/2, Finance.CashFlow.xirr/2, Finance.TVM.rate/6).

The default Finance.Solver: Newton-Raphson using the analytic derivative of the net present value, with a bracketing bisection fallback when a Newton step wanders outside the (-1, ∞) domain or fails to converge.

Time-value-of-money scalars: fv/5, pv/5, pmt/5, nper/5, and rate/6.