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Math problem

 
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Arclite



Joined: 02 Jul 2004
Posts: 16
Location: UK

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Math problem
PostPosted: Thu Sep 09, 2004 4:49 pm     Reply with quote
Hi guys,
Maybe this is in the wrong forum, so any advice is welcomed.

I need to know know to interpolate between a couple of points.

For linear interpolation i want to interpolate between two points, and for circular interpolation i want to interp. between two points and a third 'via' point.

Does anyone know where to find info on this topic. I've tried stuff like Numerical Recipes in C but i need a practical guide on the concept.
Mark



Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA

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PostPosted: Thu Sep 09, 2004 7:12 pm     Reply with quote
Edited!

Last edited by Mark on Fri Sep 10, 2004 5:43 am; edited 1 time in total
Haplo



Joined: 06 Sep 2003
Posts: 659
Location: Sydney, Australia

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PostPosted: Thu Sep 09, 2004 11:00 pm     Reply with quote
These may be helpful:

http://www.mpi-sb.mpg.de/~rybal/armc-live-termin/node9.html
http://www.phys.ufl.edu/~coldwell/class2K/interpolation/Bli.htm

http://encyclopedia.thefreedictionary.com/linear%20interpolation
http://astronomy.swin.edu.au/~pbourke/analysis/interpolation/
bdavis



Joined: 31 May 2004
Posts: 86
Location: Colorado Springs, CO

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PostPosted: Fri Sep 10, 2004 9:47 pm     Reply with quote
For non-linear, do a google search on B-Spline interpolation. Given "n" data points, you can calculate the perfect curve with it. Don't let the math scare ya, it all reduces to subtraction, addition, and division - The PIC can handle it if you aren't pressed for time...
Aghast
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Interpolation
PostPosted: Fri Sep 10, 2004 11:57 pm     Reply with quote
Need a reference on LINEAR interpolation between two points? Cubic splines and non-linear stuff is forgiveable, but gimme a break.

This is the wrong forum, for sure. There must be a remedial math for 5th graders UG or something like that.
Mark



Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA

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PostPosted: Sat Sep 11, 2004 8:28 am     Reply with quote
Quote:

This is the wrong forum, for sure. There must be a remedial math for 5th graders UG or something like that.


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