diff vandermonde.m @ 820:501750fbbfdb

Merge with feature/grids
author Jonatan Werpers <jonatan@werpers.com>
date Fri, 07 Sep 2018 14:40:58 +0200
parents 0090a86d8b72
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vandermonde.m	Fri Sep 07 14:40:58 2018 +0200
@@ -0,0 +1,15 @@
+% Create vandermonde matrix for points x and polynomials of order p
+% x is a list of N points of size [N,dim],
+% p is a list of polynomial orders of size [M, dim].
+% the given mononomials are evaluated and the NxM matrix V is returned.
+function V = vandermonde(x, p)
+    assert(size(x,2) == size(p,2), 'x and p must have the same number of columns')
+    n = size(x,1);
+    m = size(p,1);
+
+    for i = 1:m
+        V(:,i) = mononomial(x, p(i,:));
+    end
+
+    assertSize(V,[n,m]);
+end