Time value of money solvers. More...

Modules
module	mrffl_tvm
	Solvers for TVM problems involving lump sums, level (fixed) annuities, and geometric (growing) annuities.

Functions/Subroutines
real(kind=rk) pure elemental function, public	mrffl_tvm::fv_from_pv_n_i (pv, n, i)
	compute future value from present value (pv), number of periods (n), and an intrest rate (i).

real(kind=rk) pure function, public	mrffl_tvm::tvm_geometric_annuity_sum_a (n, g, a)
	Sum the payments from a geometric annuity.

integer(kind=ik) pure function, public	mrffl_tvm::tvm_delayed_annuity_num_payments (n, d, e)
	Return the number of payments given the period count (n), delay (d), and early end (e).

subroutine, public	mrffl_tvm::tvm_lump_sum_solve (n, i, pv, fv, unknowns, status)
	Solve for TVM parameters for a lump sum.

subroutine, public	mrffl_tvm::tvm_delayed_lump_sum_solve (n, i, pv, fv, a, d, unknowns, status)
	Solve for TVM parameters for a generalized lump sum.

subroutine, public	mrffl_tvm::tvm_delayed_lump_sum_check (n, i, pv, fv, a, d, status)
	Check the TVM parameters for a generalized lump sum.

subroutine, public	mrffl_tvm::tvm_delayed_level_annuity_solve (n, i, pv, fv, a, d, e, unknowns, status)
	Solve for TVM parameters for a level annuity.

real(kind=rk) function	sf_i_no_n (i)

real(kind=rk) function	sf_i_no_fv (i)

real(kind=rk) function	sf_i_no_pv (i)

subroutine, public	mrffl_tvm::tvm_delayed_level_annuity_check (n, i, pv, fv, a, d, e, status)
	Check TVM parameters for a level annuity.

subroutine, public	mrffl_tvm::tvm_delayed_geometric_annuity_solve (n, i, g, pv, fv, a, d, e, unknowns, status)
	Solve for TVM parameters for a geometric annuity certain.

subroutine, public	mrffl_tvm::tvm_delayed_geometric_annuity_check (n, i, g, pv, fv, a, d, e, status)
	Check TVM parameters for a geometric annuity certain.

subroutine, public	mrffl_tvm::tvm_delayed_arithmetic_annuity_solve (n, i, q, pv, fv, a, d, e, unknowns, status)
	Solve for TVM parameters for a arithmetic annuity certain.

subroutine, public	mrffl_tvm::tvm_delayed_arithmetic_annuity_check (n, i, q, pv, fv, a, d, e, status)
	Check TVM parameters for a arithmatic annuity certain.

Variables
real(kind=rk), parameter	mrffl_tvm::consistent_epsilon = 1.0e-3_rk
	Used to check equation consistency.

Detailed Description

Time value of money solvers.

Author: Mitch Richling http://www.mitchr.me/

Date: 2024-12-19

Keywords: finance fortran monte carlo inflation cashflow time value of money tvm percentages taxes stock market

Standards: F2023

See also: https://github.com/richmit/FortranFinance

Copyright

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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.H.E.!!

Definition in file mrffl_tvm.f90.