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How can I make r as subject of the following formula? A=R(1-(1+r)^-n)/r Thank you. 175.157.115.182 ( talk) 16:13, 30 January 2014 (UTC)
The equation in terms of r is non-linear and there is no formula for it. However you can write
f(r) = A - R(1-(1+r)^-n)/r
And search for values of r that makes f(r) = 0 , probably the easiest is to ask the computer to plot the graph of f(r). 202.177.218.59 ( talk) 23:15, 2 February 2014 (UTC)
Use the binomial theorem
Truncate the series and solve the resulting algebraic equation numerically. Bo Jacoby ( talk) 11:11, 3 February 2014 (UTC).
Mathematics desk | ||
---|---|---|
< January 29 | << Dec | January | Feb >> | Current desk > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
---|
The page you are currently viewing is a transcluded archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
How can I make r as subject of the following formula? A=R(1-(1+r)^-n)/r Thank you. 175.157.115.182 ( talk) 16:13, 30 January 2014 (UTC)
The equation in terms of r is non-linear and there is no formula for it. However you can write
f(r) = A - R(1-(1+r)^-n)/r
And search for values of r that makes f(r) = 0 , probably the easiest is to ask the computer to plot the graph of f(r). 202.177.218.59 ( talk) 23:15, 2 February 2014 (UTC)
Use the binomial theorem
Truncate the series and solve the resulting algebraic equation numerically. Bo Jacoby ( talk) 11:11, 3 February 2014 (UTC).