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comparison +sbp/D2Variable.m @ 263:21a180acbd49 operator_remake

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Renamed standard class to D2Standard etc, Rewrote class properties.
author Martin Almquist <martin.almquist@it.uu.se>
date Thu, 08 Sep 2016 17:50:30 +0200
parents 23051a86faa4
children 8a625c5a3633
comparison
equal deleted inserted replaced
262:23051a86faa4 263:21a180acbd49
1 classdef D2Variable < sbp.OpSet 1 classdef D2Variable < sbp.OpSet
2 properties 2 properties
3 norms % Struct containing norm matrices such as H,Q, M 3 D1 % SBP operator approximating first derivative
4 boundary % Struct contanging vectors for boundry point approximations 4 H % Norm matrix
5 derivatives % Struct containging differentiation operators 5 HI % H^-1
6 borrowing % Struct with borrowing limits for different norm matrices 6 Q % Skew-symmetric matrix
7 e_1 % Left boundary operator
8 e_m % Right boundary operator
9 D2 % SBP operator for second derivative
10 M % Norm matrix, second derivative
11 S_1 % Left boundary first derivative
12 S_m % Right boundary first derivative
7 m % Number of grid points. 13 m % Number of grid points.
8 h % Step size 14 h % Step size
15 x % grid
16 borrowing % Struct with borrowing limits for different norm matrices
9 end 17 end
10 18
11 methods 19 methods
12 function obj = D2Variable(m,h,order) 20 function obj = D2Variable(m,L,order)
21
22 obj.h = L/(m-1);
23 obj.x = linspace(0,L,m)';
13 24
14 switch order 25 switch order
15 case 4 26 case 4
16 [H, HI, D1, D2, e_1, e_m, S_1, S_m] = ... 27 [obj.H, obj.HI, obj.D1, obj.D2, obj.e_1,...
17 sbp.implementations.d2_variable_4(m,h); 28 obj.e_m, obj.S_1, obj.S_m] = ...
29 sbp.implementations.d2_variable_4(m,obj.h);
18 obj.borrowing.M.S = 0.2505765857; 30 obj.borrowing.M.S = 0.2505765857;
19 otherwise 31 otherwise
20 error('Invalid operator order %d.',order); 32 error('Invalid operator order %d.',order);
21 end 33 end
22 34
23 obj.h = h;
24 obj.m = m; 35 obj.m = m;
25 36 obj.M = [];
26 obj.norms.H = H;
27 obj.norms.HI = HI;
28 % obj.norms.Q = Q;
29 % obj.norms.M = M;
30
31 obj.boundary.e_1 = e_1;
32 obj.boundary.S_1 = S_1;
33
34 obj.boundary.e_m = e_m;
35 obj.boundary.S_m = S_m;
36
37 obj.derivatives.D1 = D1;
38 obj.derivatives.D2 = D2;
39 37
40 end 38 end
41 end 39 end
42 40
43 end 41 end