Source for file LagrangeInterpolation.php
Documentation is available at LagrangeInterpolation.php
require_once "../Matrix.php"; * Given n points (x0,y0)...(xn-1,yn-1), the following methid computes * the polynomial factors of the n-1't degree polynomial passing through * Example: Passing in three points (2,3) (1,4) and (3,7) will produce * the results [2.5, -8.5, 10] which means that the points are on the * curve y = 2.5x² - 8.5x + 10. * @see http://geosoft.no/software/lagrange/LagrangeInterpolation.java.html * @author Paul Meagher (port to PHP and minor changes) $data = array(); // double[n][n]; $rhs = array(); // double[n]; for ($i = 0; $i < $n; $i++ ) { for ($j = 0; $j < $n; $j++ ) { return $s->getRowPackedCopy(); $x = array(2.0, 1.0, 3.0); $y = array(3.0, 4.0, 7.0); for ($i = 0; $i < 3; $i++ )
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