Evaluates the number of days from January 1, 1900, to the given date.

Evaluates the number of days from the beginning of the coupon period to the settlement date.

Gives the date corresponding to the number of days since January 1, 1900.

Evaluates the number of days from settlement date to the next coupon date.

Solves a first order differential-algebraic system of equations, g(t, y, y′) = 0, using the Petzold-Gear BDF method.

Evaluates the depreciation for each accounting period. Similar to depreciation_amorlinc.

Evaluates the depreciation for each accounting period. Similar to depreciation_amordegrc.

Evaluates the depreciation of an asset for a specified period using the fixed-declining balance method.

Evaluates the depreciation of an asset for a specified period using the double-declining method.

Evaluates the straight line depreciation of an asset for one period.

Evaluates the sum-of-years digits depreciation of an asset for a specified period.

Evaluates the depreciation of an asset for any given period, including partial periods, using the double-declining balance method.

Solves a first order differential-algebraic system of equations, g(t, y, y′) = 0, with optional additional constraints and user-defined linear system solver.

Evaluates the price per $100 face value of a discounted security.

Evaluates the discount rate for a security.

Evaluates the annual yield for a discounted security.

Converts a dollar price, expressed as a fraction, into a dollar price, expressed as a decimal number.

Converts a dollar price, expressed as a decimal number, into a dollar price, expressed as a fraction.

Evaluates the annual duration of a security with periodic interest payment.