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Hi all,
I have a strange request, I need to calculate a formula based on the terms given.
f(27.1864667) = 1.0
f(24.6676333) = 2.0
f(2.2479) = 10.9
So I basically need to know what f(X) is. Any ideas ?
EDIT: More info, This is to calculate score of a shooting target from the furthest point from the centre that the bullet hole made, all the rings are equally spaced so it should be linear equation.
There are infinitely many answers, though after plotting your data it is extremely close to linear. A linear least-squares regression gives
f(x) = 29.7056 - 2.51906x
courtesy of Wolfram Alpha.
The residuals are extremely small, with magnitude less than 0.0001, so the fit is excellent.
@jemidiah: You mixed up your variables.
Assuming a linear equation (y = mx + b), we can solve for the first two equations to find m = -0.39700919 and b = 11.793277. This result fits well with the third equation.
f(x) = 11.793 - 0.397x
f(27.1864667) = 0.9999727201
f(24.6676333) = 1.999949699
f(2.2479) = 10.9005837
The formula's result will be rounded to the first digit, which means it doesn't have to be exact. I am going to post more values later today and they will be more accurate.
Your formula seems to be what I need :D . I will test it thoroughly and if it works I will be a very happy man.Quote:
Originally Posted by Logophobic
I recalculated the values and then threw them at wolfram alpha and now I have a good working formula. :D
Thanks guys.
Hah, how silly of me. I'm sorry for the mix-up, though at least my link was useful.