Matlab习题答案(9)

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1.3305 0.5775 -0.3186 -1.0004 -1.0414 0.4506 0.2984 0.2907 -0.5036 -0.6385 1.2042 0.9775 0.9275 0.4090 -1.0600 1.6751 1.3062 1.3008 1.0931 -0.1269 1.0934 0.9802 0.9014 0.5146 0.3038 0.4526 0.1354 -0.1770 -0.7314 -1.0790 0.8198 0.4458 0.2557 0.0097 -1.3050 2、（2）>> x=[1,4,9,16,25,36,49,64,81,100]; >> N=[1,4,9,16,25,36,49,64,81,100]; >> sqrt(N)=[1,2,3,4,5,6,7,8,9,10]; >> interp1(N,sqrt(N),1:100,'cubic') ans =

Columns 1 through 12

1.0000 1.3729 1.7125 2.0000 2.8292 3.0000 3.1636 3.3186 3.4661

Columns 13 through 24

3.6069 3.7422 3.8729 4.0000 4.4730 4.5832 4.6907 4.7958 4.8988

Columns 25 through 36

5.0000 5.0993 5.1966 5.2921 5.6570 5.7446 5.8309 5.9160 6.0000

Columns 37 through 48

6.0829 6.1647 6.2454 6.3249 6.6334 6.7082 6.7823 6.8556 6.9281

Columns 49 through 60

7.0000 7.0712 7.1416 7.2113 7.4835 7.5500 7.6159 7.6812 7.7459

Columns 61 through 72

7.8102 7.8739 7.9372 8.0000 8.2464 8.3068 8.3668 8.4263 8.4854

Columns 73 through 84

8.5441 8.6024 8.6603 8.7178 8.9442 9.0000 9.0555 9.1107 9.1655

Columns 85 through 96

9.2201 9.2744 9.3284 9.3821 9.5935 9.6456 9.6973 9.7486 9.7996

Columns 97 through 100

9.8502 9.9005 9.9505 10.0000 第七章 实验指导 1、求定积分

（1）function f=fsx(x) f=sin(x)./x; >> I=quadgk(@fsx,0,2) I = 1.6054

（2）function f=fsx(x)

2.2405 2.4551 4.1237 4.2435 5.3857 5.4777 6.4035 6.4810 7.2804 7.3487 8.0623 8.1242 8.7749 8.8317 9.4354 9.4884 2.6494 4.3599 5.5681 6.5577 7.4164 8.1855 8.8881 9.5412

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