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Function/Curve that goes through certain points?

by Kepler_
Tags: function or curve, points
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Kepler_
#1
Mar10-14, 09:42 PM
P: 4
Is there a simple way to make a function go through a set of points?

Something similar to what I'm looking for is this; a function that creates a smooth curve crossing y=0 at a list of x-coordinates

This will cross y=0 at x=-10, x=-2, and x=5
f(x)=(x-(-10))(x-(-2))(x-(5))

This is simple and infinitely expandable. Thanks!
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micromass
#2
Mar10-14, 09:44 PM
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http://en.wikipedia.org/wiki/Lagrange_polynomial


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