# npve

npve(stream,
discountRate, initialValue,
factor, timeStep)
is the system
dynamics function
that returns the net present value of stream
computed using discountRate. The
computation done assumes that the stream
is valued at the end of the period and that the discount rate is
intended as a discrete period rate.

Example:

npve can
be called
in formulas of system dynamics variables.

#### Units:

stream
-> units

discountRate -> 1/time

initialValue ->
units*time

factor -> dimensionless

timeStep -> time

npve()
-> units*time

#### Related topics

npv