rbt wrote:
> Is this mathematically correct?
>
>
> def inflation():
> start = int(str.strip(raw_input("How much money do you need each
> month at the start of retirement: ")))
> inflation = float(str.strip(raw_input("What will inflation average
> over the next 30 years(.03, .04, etc): ")))
>
> for x in xrange(30):
> start = start*inflation+start
> print start
>
> inflation()
I'm not really familiar with financial calculations, but it looks
correct. There's a faster way though, since repeated multiplication is
the same as taking the power with the number of years as the exponent:
def inflation():
start = ... # same as before
inflation = ... # same as before
print start * (1+inflation)**30
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