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annotate +time/Rungekutta4.m @ 7:8add0564ad6a

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Added functions for converting structs to string representations.
author Jonatan Werpers <jonatan@werpers.com>
date Mon, 21 Sep 2015 14:50:51 +0200
parents 48b6fb693025
children b18d3d201a71
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1 classdef Rungekutta4 < time.Timestepper
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2 properties
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3 D
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4 S
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5 F
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6 k
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7 t
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8 v
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9 m
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10 n
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11 end
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12
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13
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14 methods
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15 function obj = Rungekutta4(D, S, k, t0, v0)
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16 obj.D = D;
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17 obj.k = k;
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18 obj.t = t0;
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19 obj.v = v0;
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20 obj.m = length(v0);
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21
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22 if S == 0
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23 obj.S = zeros(obj.m,1);
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24 else
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25 obj.S = S;
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26 end
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27
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28 obj.F = @(v,t)(obj.D*v + obj.S);
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29 end
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30
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31 function [v,t] = getV(obj)
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32 v = obj.v;
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33 t = obj.t;
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34 end
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35
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36 function obj = step(obj)
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37 obj.v = time.rk4.rungekutta_4(obj.v, obj.t, obj.k, obj.F);
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38 obj.t = obj.t + obj.k;
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39 obj.n = obj.n + 1;
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40 end
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41 end
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43
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44 methods (Static)
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45 function k = getTimeStep(lambda)
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46 k = rk4.get_rk4_time_step(lambda);
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47 end
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48 end
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49
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50 end