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 Calculus Formula Question?
 Lehpron From United States of America, joined Jul 2001, 7028 posts, RR: 20Posted Thu Jan 20 2005 21:37:31 UTC (11 years 4 months 1 week 4 days 14 hours ago) and read 901 times:

 What was the formula to find the radius of a nth-order curve? assume y(x) = A + Bx +Cx2 + ... + etc. I know it has something to do with the first and second derivative (y' and y").
 The meaning of life is curiosity; we were put on this planet to explore opportunities.
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 Flybyguy From United States of America, joined Jun 2004, 1815 posts, RR: 1 Reply 1, posted Thu Jan 20 2005 21:48:43 UTC (11 years 4 months 1 week 4 days 14 hours ago) and read 890 times:

 do you mean radius of curvature? if then it's just R ={ [1 + (y')^2]^(3/2) } / y" If memory serves me correctly.
 "Are you a pretender... or a thoroughbred?!" - Professor Matt Miller
 Lehpron From United States of America, joined Jul 2001, 7028 posts, RR: 20 Reply 2, posted Thu Jan 20 2005 22:00:06 UTC (11 years 4 months 1 week 4 days 13 hours ago) and read 882 times:

 yes thank you! now I think I can find the slope angle w.r.t. x-axis.
 The meaning of life is curiosity; we were put on this planet to explore opportunities.
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