bug su power method, aggiunto calcolo autovalori con matrici simili

2014-12-16 19:36:03 +01:00
parent 6e14720cdb
commit 436bc12ec0
3 changed files with 20 additions and 5 deletions
--- a/functions/power_method.m
+++ b/functions/power_method.m
@@ -1,22 +1,22 @@


-function [v,a] = power_method (U,toll)
+function [vn,a] = power_method (U,toll)

 [x,~] = size(U);
 for i=1:x
    v(i)=1;
 end
 v=v';
+vn=v;

 err = inf;
 while err > toll
-    
    v1=U*v;
-    v1=v1./norm(v1,inf);
-    err = norm(v1-v,inf);
+    v1n=v1./norm(v1,inf);
+    err = norm(v1n-vn,inf);
    a = v1./v;
    v=v1;
-    
+    vn=v1n;
 end