ответвлено от main/it-labs
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8.0 KiB
Отчет по теме 1
Рознатовский Т.А, А-03-24
2 Настройка текущего каталога
Нажал на окно рядом с Текущая папка: и установил путь к папке ТЕМА1
3 Изучение интерфейса
4 Установка пути к папкам ТЕМА1 и ТЕМА2
5 Изучение работы с системой помощи
6 Создание матриц и векторов
Исходные данные:
>> A=randn(4,6)
A =
6.3711e-01 7.8432e-01 1.8025e-01 3.5787e-01 6.8852e-01 5.1192e-01
3.1581e-02 1.6664e-01 7.5393e-01 8.1534e-01 4.7666e-01 7.6663e-01
9.6584e-01 1.1820e-02 9.7399e-04 3.8644e-01 5.9332e-01 5.3177e-01
2.7445e-01 3.2268e-01 9.2290e-01 2.3156e-01 7.1104e-01 9.2437e-01
>> B=rand(4,7)
B =
0.079781 0.055839 0.746626 0.948944 0.065842 0.750814 0.852608
0.455608 0.987677 0.460268 0.265391 0.114100 0.444009 0.580352
0.410006 0.762842 0.306572 0.292280 0.359641 0.948953 0.884154
0.868862 0.463408 0.703305 0.750799 0.551636 0.202557 0.828586
>> C = 4:27
>> C =
Columns 1 through 23:
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
>> H='This is a symbols vector'
>>H = This is a symbols vector
>> warning('off','all')
>> L=[-2+23.1j, 3-5.6j]
>> L =
-2.0000 + 23.1000i 3.0000 - 5.6000i
7 преобразование матриц
>> D=reshape(C,[],6)
>> D =
4 8 12 16 20 24
5 9 13 17 21 25
6 10 14 18 22 26
7 11 15 19 23 27
>> E=B'*A
>> E =
0.6997 0.4237 1.1601 0.7597 1.1332 1.4113
0.9307 0.3669 1.1831 1.2274 1.2913 1.6198
0.9793 0.8929 1.1310 0.9238 1.4154 1.5482
1.1013 1.0342 1.0643 0.8428 1.4871 1.5387
0.5443 0.2529 0.6073 0.3833 0.7053 0.8223
1.4645 0.7394 0.6580 1.0443 1.4357 1.4166
1.6429 1.0432 1.3568 1.3118 1.9774 2.1175
>> F=[A,B]
>> F =
Columns 1 through 9:
6.3711e-01 7.8432e-01 1.8025e-01 3.5787e-01 6.8852e-01 5.1192e-01 7.9781e-02 5.5839e-02 7.4663e-01
3.1581e-02 1.6664e-01 7.5393e-01 8.1534e-01 4.7666e-01 7.6663e-01 4.5561e-01 9.8768e-01 4.6027e-01
9.6584e-01 1.1820e-02 9.7399e-04 3.8644e-01 5.9332e-01 5.3177e-01 4.1001e-01 7.6284e-01 3.0657e-01
2.7445e-01 3.2268e-01 9.2290e-01 2.3156e-01 7.1104e-01 9.2437e-01 8.6886e-01 4.6341e-01 7.0330e-01
Columns 10 through 13:
9.4894e-01 6.5842e-02 7.5081e-01 8.5261e-01
2.6539e-01 1.1410e-01 4.4401e-01 5.8035e-01
2.9228e-01 3.5964e-01 9.4895e-01 8.8415e-01
7.5080e-01 5.5164e-01 2.0256e-01 8.2859e-01
>> G=A.\*D
>> G =
2.5484e+00 6.2745e+00 2.1630e+00 5.7259e+00 1.3770e+01 1.2286e+01
1.5791e-01 1.4997e+00 9.8011e+00 1.3861e+01 1.0010e+01 1.9166e+01
5.7950e+00 1.1820e-01 1.3636e-02 6.9558e+00 1.3053e+01 1.3826e+01
1.9212e+00 3.5495e+00 1.3843e+01 4.3996e+00 1.6354e+01 2.4958e+01
>> M=G./4.5
>> M =
5.6632e-01 1.3943e+00 4.8068e-01 1.2724e+00 3.0601e+00 2.7302e+00
3.5090e-02 3.3327e-01 2.1780e+00 3.0802e+00 2.2244e+00 4.2591e+00
1.2878e+00 2.6267e-02 3.0302e-03 1.5457e+00 2.9007e+00 3.0725e+00
4.2692e-01 7.8878e-01 3.0763e+00 9.7769e-01 3.6342e+00 5.5462e+00
>> DDD=D.^3
>> DDD =
64 512 1728 4096 8000 13824
125 729 2197 4913 9261 15625
216 1000 2744 5832 10648 17576
343 1331 3375 6859 12167 19683
>> DL=D>=20
>> DL =
0 0 0 0 1 1
0 0 0 0 1 1
0 0 0 0 1 1
0 0 0 0 1 1
>> Dstolb=D(:)
>> Dstolb =
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
8 Изучение стандартных математических функций и операций с матрицами
>> B1=sqrt(B)
>> B1 =
0.2825 0.2363 0.8641 0.9741 0.2566 0.8665 0.9234
0.6750 0.9938 0.6784 0.5152 0.3378 0.6663 0.7618
0.6403 0.8734 0.5537 0.5406 0.5997 0.9741 0.9403
0.9321 0.6807 0.8386 0.8665 0.7427 0.4501 0.9103
>> B2=log(B)
>> B2 =
-2.528476 -2.885283 -0.292191 -0.052406 -2.720500 -0.286597 -0.159455
-0.786122 -0.012399 -0.775947 -1.326552 -2.170677 -0.811909 -0.544121
-0.891583 -0.270705 -1.182302 -1.230042 -1.022648 -0.052396 -0.123124
-0.140571 -0.769148 -0.351965 -0.286617 -0.594866 -1.596733 -0.188035
>> B3=sin(B)
>> B3 =
0.079696 0.055810 0.679166 0.812801 0.065794 0.682234 0.752999
0.440009 0.834749 0.444188 0.262286 0.113853 0.429564 0.548318
0.398615 0.690978 0.301792 0.288137 0.351938 0.812806 0.773379
0.763595 0.446999 0.646742 0.682223 0.524082 0.201175 0.736976
>> k=length(B1)
>> k = 7
>> nm=size(B1)
>> nm =
4 7
>> elem=numel(B1)
>> elem = 28
>> NN=linspace(11.5,34.1,20)
>> NN =
Columns 1 through 13:
11.500 12.689 13.879 15.068 16.258 17.447 18.637 19.826 21.016 22.205 23.395 24.584 25.774
Columns 14 through 20:
26.963 28.153 29.342 30.532 31.721 32.911 34.100
>> FF=ones(2,4)
>> FF =
1 1 1 1
1 1 1 1
>> GG=zeros(5)
>> GG =
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
>> B1D=diag(B1)
>> B1D =
0.2825
0.9938
0.5537
0.8665
>> DB=diag(B1D)
>> DB =
Diagonal Matrix
0.2825 0 0 0
0 0.9938 0 0
0 0 0.5537 0
0 0 0 0.8665
>> BS1=sort(B)
>> BS1 =
0.079781 0.055839 0.306572 0.265391 0.065842 0.202557 0.580352
0.410006 0.463408 0.460268 0.292280 0.114100 0.444009 0.828586
0.455608 0.762842 0.703305 0.750799 0.359641 0.750814 0.852608
0.868862 0.987677 0.746626 0.948944 0.551636 0.948953 0.884154
>> BS2=sortrows(B,2)
>> BS2 =
0.079781 0.055839 0.746626 0.948944 0.065842 0.750814 0.852608
0.868862 0.463408 0.703305 0.750799 0.551636 0.202557 0.828586
0.410006 0.762842 0.306572 0.292280 0.359641 0.948953 0.884154
0.455608 0.987677 0.460268 0.265391 0.114100 0.444009 0.580352
>> DS1=sum(D)
>> DS1 =
22 38 54 70 86 102
>> DS2=sum(D,2)
>> DS2 =
84
90
96
102
>> DP1=prod(D)
>> DP1 =
840 7920 32760 93024 212520 421200
>> dt=det(A*A')
>> dt = 0.5612
>> dinv=inv(A*A')
>> dinv =
2.065633 0.179331 -1.155947 -0.930132
0.179331 2.239819 -0.101288 -1.894903
-1.155947 -0.101288 1.595099 0.027661
-0.930132 -1.894903 0.027661 2.564475
9 Изучение индексации в матрицах
>> D1=D(3,5)
>> D1 = 22
>> D2=D(3,4:end)
>> D2 =
18 22 26
>> D3=D(2:3,3:5)
>> D3 =
13 17 21
14 18 22
>> D4=D(16:20)
>> D4 =
19 20 21 22 23
>> D5=D(3:4,[1,3,6])
>> D5 =
6 14 26
7 15 27
10 Изучение управляющих конструкций
>> Dsum=0
>> Dsum = 0
>> for i=1:6
>> Dsum=Dsum+sqrt(D(2,i))
>> endfor
>> Dsum = 2.2361
>> Dsum = 5.2361
>> Dsum = 8.8416
>> Dsum = 12.965
>> Dsum = 17.547
>> Dsum = 22.547
>> Dsum2=0;
>> i=1
>> i = 1
>> while (D(i)<22)
>> Dsum2=Dsum2+sin(D(i))
>> i=i+1
>> endwhile
>> Dsum2 = -0.7568
>> i = 2
>> Dsum2 = -1.7157
>> i = 3
>> Dsum2 = -1.9951
>> i = 4
>> Dsum2 = -1.3382
>> i = 5
>> Dsum2 = -0.3488
>> i = 6
>> Dsum2 = 0.063321
>> i = 7
>> Dsum2 = -0.4807
>> i = 8
>> Dsum2 = -1.4807
>> i = 9
>> Dsum2 = -2.0173
>> i = 10
>> Dsum2 = -1.5971
>> i = 11
>> Dsum2 = -0.6065
>> i = 12
>> Dsum2 = 0.043799
>> i = 13
>> Dsum2 = -0.2441
>> i = 14
>> Dsum2 = -1.2055
>> i = 15
>> Dsum2 = -1.9565
>> i = 16
>> Dsum2 = -1.8066
>> i = 17
>> Dsum2 = -0.8937
>> i = 18
>> Dsum2 = -0.057011
>> i = 19
>> if (D(3,5)>=20)
>> printf('D(3,5)>=20')
>> else
>> printf('D(3,5)<20')
>> endif
>> D(3,5)>=20>>
11 Изучение графических функций и их вывод
graphics_toolkit('gnuplot')
plot(D(1,:),B([2,4],1:6))
hist(A(:),6)
pie(C)
bar(C)
12 Изучение текстового редактора и добавление программы
>> Prog1
D1 = 22
D2 =
18 22 26
D3 =
13 17 21
14 18 22
D4 =
19 20 21 22 23
D5 =
6 14 26
7 15 27
>> Prog1
D1 = 22
D2 =
18 22 26
D3 =
13 17 21
14 18 22
D4 =
19 20 21 22 23
D5 =
6 14 26
7 15 27
13 Сохранение и загрузка области переменных
