diff vandermonde.m @ 832:5573913a0949 feature/burgers1d

Merged with default, and updated +scheme/Burgers1D accordingly
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Tue, 11 Sep 2018 15:58:35 +0200
parents 0090a86d8b72
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vandermonde.m	Tue Sep 11 15:58:35 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