[TheForge] arc length

[Marc Godbout]

That should work fine. Circumference and arc length are linear, based on
the radius and angle.

ArcLength = 2 X pi X radius X degrees / 360

One other math-type trick - If I want to know if a table can be
interpolated and I don't know the math behind the table, I try to
interpolate one of the values in the table using the values around it.
If my interpolation comes up the same as the actual value, then it'll
probably work.

Then there's always the "close enough for government work" factor.

-Marc

On Sun, 2002-10-06 at 08:12, Chris Caswell wrote:
> 
> Does anyone know how to interpolate from a mathematical table?
> I am working on an arc length problem for an arc that has an angle of 112.75
> degrees, but the table has only whole degrees.  Can I do it as a direct
> proportion?

> 

-- 
Marc Godbout
http://www.ironringforge.com