modular arithmetic

  • Thread starter Thread starter Guest
  • Start date Start date
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Guest

Hi, I have a formula that I would like to put into excel but I don’t know how
to solve for t. This one is a toughy

I am trying to solve for t, time.

FV = future value
R = f*p
i = 0.05
t mod 2 = remainder which = t – 2k
t = ?



FV = 2R (((1+i)^t -1)/i) + R (1+i)^t (t mod 2)


This formula was designed to return the time it will take to pay off an
investment whereby the revenues received, R, increase every two years by
percent i
 
Read HELP on Financial Functions...FV,PV,PMT etc etc
While you can of course design your own User Defined Functions, there's
little point in replication what's already available as a spreadsheet
function.

From HELP:

NPER
Returns the number of periods for an investment based on periodic, constant
payments and a constant interest rate.

Syntax

NPER(rate, pmt, pv, fv, type)
 
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