The following is a
graph of the 3rd degree Lagrange interpolating
polynomial for the four
points p1, p2, p3, and p4.
This is a prototype of JavaSketchpad, a World-Wide-Web component of The Geometer's Sketchpad. Copyright ©1990-1998 by Key Curriculum Press, Inc. All rights reserved. Portions of this work were funded by the National Science Foundation (awards DMI 9561674 & 9623018).