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CODE:
function exercise011
clear all
clc
global R
R = 8.413;
a1=[0 96.1
1 97.3
2 158.6
3 190
4 197.5
5 194.8
6 194.5
7 195.4
8 196.3
9 195.4
10 195.6
11 195.7
12 195.2
13 194.6
14 192
15 183
16 174.2
17 166.5
18 159.7
19 153.5
20 147.9];
a2=[0 96.6
1 97.8
2 98.8
3 97.9
4 97.5
5 97.9
6 171.2
7 197.9
8 196.7
9 194
10 194.7
11 195.2
12 195.9
13 195.3
14 194.9
15 195.1
16 195.5
17 192.6
18 193
19 194.1
20 195.5
21 193.6
22 192.9
23 192.2
24 193.5
25 194.8
26 192.9
27 190.5
28 183.4
29 176.1
30 169.5
31 163.6
32 158.4
33 153.6
34 149.1
35 145
36 141.2
37 137.8
38 134.5
39 131.3
40 128.4
41 125.7
42 122.9
43 120.4
44 117.9
45 115.6
46 113.4
47 111.3
48 109.3
49 107.2
50 105.3
51 103.6
52 101.8
53 100.1
54 98.5];
a3=[0 95.9
1 97.3
2 165
3 190.9
4 195.9
5 195.5
6 195.5
7 196.5
8 195.9
9 195.6
10 196.1
11 196.4
12 194.5
13 193
14 192.3
15 191.8
16 191.3
17 191
18 190.7
19 190.5
20 190.3
21 190.1
22 190.2
23 190.5
24 190.9
25 191.5
26 191
27 190.7
28 191.3
29 191.7
30 192.1
31 192.5
32 192.8
33 188.2
34 179.8
35 171.5
36 164.3
37 157.8
38 152
39 146.8
40 141.9
41 137.5
42 133.5
43 129.7
44 126.1
45 122.9
46 119.8
47 116.9
48 114.2
49 111.6
50 109.1
51 106.9
52 104.7
53 102.8
54 101.6
55 100.6];
a4=[0 96.3
1 124.7
2 184.9
3 197.3
4 194.5
5 193.7
6 194.5
7 195
8 195.4
9 194.9
10 194
11 193.3
12 192.7
13 192.2
14 191.9
15 191.6
16 191.4
17 191.1
18 191.4
19 191.5
20 191.6
21 191.8
22 191.9
23 191.9
24 191.9
25 191.9
26 191.9
27 191.9
28 191.9
29 191.9
30 191.7
31 191.7
32 191.5
33 191.6
34 191.4
35 191.3
36 191.1
37 191.1
38 191
39 190.9
40 190.7
41 190.7
42 190.4
43 183.6
44 174.9
45 166.8
46 159.3
47 152.3
48 145.6
49 139.7
50 134.3
51 129.2
52 124.6
53 120.3
54 116.3
55 112.6
56 109.2
57 105.9
58 102.8];
a5=[0 97
1 99.3
2 180.6
3 196.1
4 194.8
5 193.2
6 193.9
7 194.5
8 195
9 195.6
10 195.8
11 195.4
12 195.7
13 196.3
14 194.8
15 192.8
16 193.9
17 194.9
18 195.4
19 194
20 194.7
21 194.9
22 192.2
23 192.7
24 193.3
25 194.1
26 194.9
27 195.8
28 192.7
29 192.8
30 193.7
31 194.7
32 195.5
33 195.7
34 194.3
35 194.8
36 195.4
37 195.8
38 193.5
39 193.8
40 194.3
41 194.7
42 195.1
43 195.5
44 195.6
45 193.4
46 193.5
47 193.7
48 194.1
49 194.3
50 194.7
51 194.8
52 195
53 195.2
54 195.5
55 195.5
56 195.6
57 195.8
58 195.8
59 195.9
60 189.6
61 180.3
62 172
63 164.5
64 158
65 152
66 146.6
67 141.5
68 136.8
69 132.6
70 128.5
71 124.9
72 121.4
73 118.2
74 115.4
75 112.7
76 110.2
77 107.8
78 105.4
79 103.3
80 101.2
81 99.2];
x0= [0.232573702 0.443523301 0.522192614 0.724670708 0.942120657];
beta0=[0.5 2810];
lb = [-inf -inf];
ub = [+inf +inf];
[beta,resnorm,resid,exitflag]=lsqnonlin(@ObjFun,beta0,lb,ub,[],a1,a2,a3,a4,a5,x0)
function f = ObjFun(beta,a1,a2,a3,a4,a5,x0)
[x1,B1]=ode23s(@odefun,[a1(1,1),a1(end,1)],0,[],beta,a1);
[x2,B2]=ode23s(@odefun,[a2(1,1),a2(end,1)],0,[],beta,a2);
[x3,B3]=ode23s(@odefun,[a3(1,1),a3(end,1)],0,[],beta,a3);
[x4,B4]=ode23s(@odefun,[a4(1,1),a4(end,1)],0,[],beta,a4);
[x5,B5]=ode23s(@odefun,[a5(1,1),a5(end,1)],0,[],beta,a5);
B=[B1(end),B2(end),B3(end),B4(end),B5(end)];
xcal=1-exp(-B);
f=x0-xcal;
function f = odefun(t,x,beta,a)
global R
k0=beta(1);
Ea=beta(2);
T=Tfun(x,a);
f = k0 * exp(-Ea/R/T);
function f= Tfun(x,a)
% f=interp1(a1(:,1),a1(:,2),t,'spline');
pp=fit(a(:,1),a(:,2),'smoothingspline');
f=feval(pp,x);
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