Mercurial > repos > public > sbplib

comparison +time/Magnus4.m @ 510:71908bbce2e1 feature/quantumTriangles

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
tried to add 4th order magnus integrator which does not work
author Ylva Rydin <ylva.rydin@telia.com>
date Fri, 02 Jun 2017 17:46:01 +0200
parents
children bc39bb984d88
comparison
equal deleted inserted replaced
509:566304a5733e 510:71908bbce2e1
1 classdef Magnus4 < time.Timestepper
2 properties
3 D
4 S
5 F
6 k
7 t
8 v
9 m
10 n
11 end
12
13
14 methods
15 function obj = Magnus4(D, k, t0, v0)
16 obj.D = D;
17 obj.k = k;
18 obj.t = t0;
19 obj.v = v0;
20 obj.m = length(v0);
21 obj.n = 0;
22 end
23
24 function [v,t] = getV(obj)
25 v = obj.v;
26 t = obj.t;
27 end
28
29 function obj = step(obj)
30 obj.v = time.expint.Magnus_4(obj.v,obj.D, obj.t, obj.k);
31 obj.t = obj.t + obj.k;
32 obj.n = obj.n + 1;
33 end
34 end
35
36
37 methods (Static)
38 function k = getTimeStep(lambda)
39 k = rk4.get_rk4_time_step(lambda);
40 end
41 end
42
43 end