1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
clc
clear
sumR2=0
sumR3=0
sumR4=0
function a=fun(x)
a=exp(-x.*x)
endfunction
A=[0.2 1.5]
M=(A(1,1)+A(1,2))/2
h=M-0.2
R1=(h)/2 *[fun(0.2)+fun(1.5)+2*fun(M)]
h1=h/2
for i=1:3
B(1,i)=0.2+i*h1
sumR2=fun(B(1,i))+sumR2
end
R2=h1/2 *[fun(0.2)+fun(1.5)+2*sumR2]
h2=h1/2
for i=1:7
C(1,i)=0.2+i*h2
sumR3=fun(C(1,i))+sumR3
end
R3=h2/2 *[fun(0.2)+fun(1.5)+2*sumR3]
h3=h2/2
for i=1:15
D(1,i)=0.2+i*h3
sumR4=fun(D(1,i))+sumR4
end
R4=h3/2 *[fun(0.2)+fun(1.5)+2*sumR4]
R5=R2+1/3*(R2-R1)
R6=R3+1/3*(R3-R2)
R7=R4+1/3*(R4-R3)
R8=R6+1/3*(R6-R5)
R9=R7+1/3*(R7-R6)
R10=R9+1/3*(R9-R8)
T1=[R1]
T2=[R2, R5]
T3=[R3, R6, R8]
T4=[R4,R7,R9,R10]
disp(T1)
disp(T2)
disp(T3)
disp(T4)
|
