Find the curvatureKof the curve.

I have:

Combine like terms:

I have that curvature is

For the numerator I crossed r' and r'' and got:

I don't know how to convert this into a magnitude; same for denominator. :(

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- Jun 10th 2010, 09:34 AMNegativFinding curvature
Find the curvature

*K*of the curve.

I have:

Combine like terms:

I have that curvature is

For the numerator I crossed r' and r'' and got:

I don't know how to convert this into a magnitude; same for denominator. :( - Jun 10th 2010, 09:48 AMAckbeet
The magnitude of a vector .

- Jun 10th 2010, 10:51 AMNegativ
I got down to

That look right? :/ - Jun 10th 2010, 11:01 AMAckbeet
Can you clean up the LaTeX code a bit?

- Jun 10th 2010, 11:07 AMNegativ
Tried to make it more legible.

- Jun 10th 2010, 11:13 AMAckbeet
Try this: . You can click on the equation I just wrote down to see what LaTeX code I wrote to obtain it.

That's what I got as well. Looks good!