brad asked:
Given:
r = (1 + i/n)^n – 1
Solve for i:
i = ?
I don’t need an explanation of what the formula means, I know what it means, I just need a formula for i, and I’m not sure I remember the usage of logarithms to compute it, because what I come up with doesn’t seem to work. This is not homework, this is for a personal finance project. I’ve asked this before, but no one actually solves for i for some reason, can you do it?
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Tags: Finance Project, Logarithms, Personal Finance —
August 2nd, 2008 at 10:23 pm
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hey, not knowing what this formula is, can you tell me if the exponential is just n or is it actually (n-1)
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i = n* ( ( nroot(r-1) ) – 1 )
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I might be wrong, but this is my wild guess after arranging the formula.
i = ( ( n√(r – 1 ) ) – 1 )* n
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maybe ((r+1)^(1/n) )n -1?????
that’s my best try.
good luck!!
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1+i/n=ⁿˉ¹√r =>
i/n=(ⁿˉ¹√r)-1 =>
i=n[(ⁿˉ¹√r)-1]
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GIVEN: r = (1 + i/n)^n – 1
ANSWER: i = ((nth root (r+1)) – 1) n
IFF GIVEN IS: r = (1 + i/n)^(n – 1)
ANSWER IS: i = (((n-1)th root (r)) – 1) n
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i=(r^1/(1-n)-1)n