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diff +time/+expint/Magnus_4.m @ 512:4ef2d2a493f1 feature/quantumTriangles

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add H_xyz to hypsyst to compute H-norm
author Ylva Rydin <ylva.rydin@telia.com>
date Mon, 26 Jun 2017 19:23:19 +0200
parents 71908bbce2e1
children bc39bb984d88
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--- a/+time/+expint/Magnus_4.m	Thu Jun 08 10:33:36 2017 +0200
+++ b/+time/+expint/Magnus_4.m	Mon Jun 26 19:23:19 2017 +0200
@@ -11,7 +11,9 @@
    A1 = D(t +c1*k);
    A2 = D(t + c2*k);
    Omega = k/2*(A1 + A2) + sqrt(3)*k^2/12*(A1*A2-A2*A1);
-   v = expm(Omega)*v;
+  % v = expm(Omega)*v;
+     toler = 10^(-8);
+  v = time.expint.expm_Arnoldi(-Omega,v,k,toler,100);
 else
    %v = krylov(k*D,v);
    v = expm(k*D)*v;