otchetmd

ТЕМА1/lab1_otchet.md

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+\# Отчет по теме 1
+
+
+
+Ершова Вероника, А-03-24
+
+
+
+\## 1 Изучение среды GNU Octave 
+
+
+
+\## 2 Настройка текущего каталога
+
+
+
+Нажал на окно рядом с \*Текущая папка:\* и установил путь к папке ТЕМА1:
+
+
+
+!\[Скриншот выбора текущей папки](ch\_file.png)
+
+
+
+\## 3 Изучение интерфейса
+
+!\[Скриншот интерфейса](image\_interface.png)
+
+
+
+\## 4 Установка пути к папкам ТЕМА1 и ТЕМА2
+
+!\[Скриншот установки](put\_file.png)
+
+
+
+\## 5 Изучение работы с системой помощи
+
+!\[Скриншот справки](documentation.png)
+
+
+
+\## 6 Создание матриц и векторов
+
+```matlab
+
+>> A=randn(4,6)
+
+A =
+
+
+
+  -0.3123   0.2623  -0.5659   0.8583  -0.5970   0.9411
+
+  -0.3970   0.8236   0.6951   0.6303  -0.7044  -1.7374
+
+  -1.0984   0.5386  -0.2843  -0.3507  -0.5547  -1.9063
+
+   0.1025   1.1803  -0.4632   0.4787   0.9092  -0.6363
+
+```
+
+>> B=rand(4,7)
+
+B =
+
+
+
+   0.644835   0.573813   0.875185   0.901622   0.128847   0.962663   0.245441
+
+   0.822337   0.515764   0.478145   0.540383   0.080948   0.520514   0.075695
+
+   0.893529   0.350316   0.940080   0.651110   0.694296   0.249719   0.568012
+
+   0.404731   0.782888   0.760890   0.166651   0.586766   0.664987   0.086867
+
+
+
+>> C = 4:27
+
+C =
+
+
+
+    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27
+
+
+
+>> H='This is a symbols vector
+
+
+
+>>> H='This is a symbols vector
+
+                              ^
+
+>> L=\[-2+23.1j, 3-5.6j]
+
+L =
+
+
+
+   -2.0000 + 23.1000i    3.0000 -  5.6000i
+
+
+
+
+
+\## 7 Преобразования 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 =
+
+
+
+  -1.467808   1.805345  -0.234815   0.952120  -1.091901  -2.782730
+
+  -0.688507   1.687984  -0.428432   1.069487  -0.188416  -1.522026
+
+  -1.417751   2.027711  -0.782629   1.087059  -0.688963  -2.283294
+
+  -1.194195   1.228917  -0.396936   0.965854  -1.128588  -1.437582
+
+  -0.774871   1.166932  -0.485822   0.198993   0.014438  -1.716256
+
+  -0.713412   1.600553  -0.561983   1.385063  -0.475313  -0.897539
+
+  -0.721710   0.535160  -0.288015   0.100733  -0.435934  -1.038587
+
+
+
+>> F=\[A,B]
+
+F =
+
+
+
+ Columns 1 through 12:
+
+
+
+  -0.312294   0.262288  -0.565932   0.858280  -0.597024   0.941114   0.644835   0.573813   0.875185   0.901622   0.128847   0.962663
+
+  -0.396963   0.823623   0.695119   0.630284  -0.704447  -1.737432   0.822337   0.515764   0.478145   0.540383   0.080948   0.520514
+
+  -1.098415   0.538569  -0.284317  -0.350730  -0.554662  -1.906275   0.893529   0.350316   0.940080   0.651110   0.694296   0.249719
+
+   0.102471   1.180265  -0.463169   0.478719   0.909196  -0.636291   0.404731   0.782888   0.760890   0.166651   0.586766   0.664987
+
+
+
+ Column 13:
+
+
+
+   0.245441
+
+   0.075695
+
+   0.568012
+
+   0.086867
+
+
+
+>> G=A.\*D
+
+G =
+
+
+
+   -1.2492    2.0983   -6.7912   13.7325  -11.9405   22.5867
+
+   -1.9848    7.4126    9.0365   10.7148  -14.7934  -43.4358
+
+   -6.5905    5.3857   -3.9804   -6.3131  -12.2026  -49.5632
+
+    0.7173   12.9829   -6.9475    9.0957   20.9115  -17.1799
+
+
+
+>> M=G./4.5
+
+M =
+
+
+
+   -0.2776    0.4663   -1.5092    3.0517   -2.6534    5.0193
+
+   -0.4411    1.6472    2.0081    2.3811   -3.2874   -9.6524
+
+   -1.4646    1.1968   -0.8845   -1.4029   -2.7117  -11.0140
+
+    0.1594    2.8851   -1.5439    2.0213    4.6470   -3.8177
+
+
+
+>> 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 =
+
+
+
+   0.8030   0.7575   0.9355   0.9495   0.3590   0.9812   0.4954
+
+   0.9068   0.7182   0.6915   0.7351   0.2845   0.7215   0.2751
+
+   0.9453   0.5919   0.9696   0.8069   0.8332   0.4997   0.7537
+
+   0.6362   0.8848   0.8723   0.4082   0.7660   0.8155   0.2947
+
+
+
+>> B2=log(B)
+
+B2 =
+
+
+
+  -0.438761  -0.555453  -0.133320  -0.103559  -2.049133  -0.038052  -1.404697
+
+  -0.195605  -0.662106  -0.737842  -0.615477  -2.513947  -0.652939  -2.581039
+
+  -0.112577  -1.048919  -0.061790  -0.429077  -0.364857  -1.387420  -0.565612
+
+  -0.904533  -0.244765  -0.273267  -1.791851  -0.533128  -0.407988  -2.443381
+
+
+
+>> B3=sin(B)
+
+B3 =
+
+
+
+   0.601067   0.542838   0.767662   0.784334   0.128490   0.820716   0.242985
+
+   0.732738   0.493200   0.460133   0.514464   0.080860   0.497326   0.075623
+
+   0.779288   0.343195   0.807605   0.606069   0.639845   0.247131   0.537958
+
+   0.393772   0.705330   0.689566   0.165881   0.553671   0.617049   0.086757
+
+
+
+>> B1=sqrt(B)
+
+B1 =
+
+
+
+   0.8030   0.7575   0.9355   0.9495   0.3590   0.9812   0.4954
+
+   0.9068   0.7182   0.6915   0.7351   0.2845   0.7215   0.2751
+
+   0.9453   0.5919   0.9696   0.8069   0.8332   0.4997   0.7537
+
+   0.6362   0.8848   0.8723   0.4082   0.7660   0.8155   0.2947
+
+
+
+>> B2=log(B)
+
+B2 =
+
+
+
+  -0.438761  -0.555453  -0.133320  -0.103559  -2.049133  -0.038052  -1.404697
+
+  -0.195605  -0.662106  -0.737842  -0.615477  -2.513947  -0.652939  -2.581039
+
+  -0.112577  -1.048919  -0.061790  -0.429077  -0.364857  -1.387420  -0.565612
+
+  -0.904533  -0.244765  -0.273267  -1.791851  -0.533128  -0.407988  -2.443381
+
+
+
+>> B3=sin(B)
+
+B3 =
+
+
+
+   0.601067   0.542838   0.767662   0.784334   0.128490   0.820716   0.242985
+
+   0.732738   0.493200   0.460133   0.514464   0.080860   0.497326   0.075623
+
+   0.779288   0.343195   0.807605   0.606069   0.639845   0.247131   0.537958
+
+   0.393772   0.705330   0.689566   0.165881   0.553671   0.617049   0.086757
+
+
+
+>> NN=linspace(11.5,34.1,20)
+
+NN =
+
+
+
+ Columns 1 through 15:
+
+
+
+   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   26.963   28.153
+
+
+
+ Columns 16 through 20:
+
+
+
+   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 =
+
+
+
+   0.8030
+
+   0.7182
+
+   0.9696
+
+   0.4082
+
+
+
+>> DB=diag(B1D)
+
+DB =
+
+
+
+Diagonal Matrix
+
+
+
+   0.8030        0        0        0
+
+        0   0.7182        0        0
+
+        0        0   0.9696        0
+
+        0        0        0   0.4082
+
+
+
+>> BS1=sort(B)
+
+BS1 =
+
+
+
+   0.404731   0.350316   0.478145   0.166651   0.080948   0.249719   0.075695
+
+   0.644835   0.515764   0.760890   0.540383   0.128847   0.520514   0.086867
+
+   0.822337   0.573813   0.875185   0.651110   0.586766   0.664987   0.245441
+
+   0.893529   0.782888   0.940080   0.901622   0.694296   0.962663   0.568012
+
+
+
+>> BS2=sortrows(B,2)
+
+BS2 =
+
+
+
+   0.893529   0.350316   0.940080   0.651110   0.694296   0.249719   0.568012
+
+   0.822337   0.515764   0.478145   0.540383   0.080948   0.520514   0.075695
+
+   0.644835   0.573813   0.875185   0.901622   0.128847   0.962663   0.245441
+
+   0.404731   0.782888   0.760890   0.166651   0.586766   0.664987   0.086867
+
+
+
+>> 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 = 73.956
+
+>> dinv=inv(A\*A')
+
+dinv =
+
+
+
+   4.4666e-01  -1.9520e-02   1.0379e-01  -3.8572e-03
+
+  -1.9520e-02   4.8342e-01  -3.4279e-01  -8.4195e-02
+
+   1.0379e-01  -3.4279e-01   4.5435e-01  -1.6761e-02
+
+  -3.8572e-03  -8.4195e-02  -1.6761e-02   3.6871e-01
+
+
+
+
+
+\## 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))
+
+!\[Обычный график](image\_plot.png)
+
+>> hist(A(:),6)
+
+!\[Гистограмма](image\_hist.png)
+
+>> pie(C)
+
+!\[Круговая диаграмма](pie\_image.png)
+
+>> bar(C)
+
+!\[График bar](image\_bar.png)
+
+
+
+
+
+\## 12 Изучение текстового редактора и добавление программы
+
+>> Prog1
+
+
+
+D1 = 22
+
+D2 =
+
+
+
+&nbsp;  18   22   26
+
+
+
+D3 =
+
+
+
+&nbsp;  13   17   21
+
+&nbsp;  14   18   22
+
+
+
+D4 =
+
+
+
+&nbsp;  19   20   21   22   23
+
+
+
+D5 =
+
+
+
+&nbsp;   6   14   26
+
+&nbsp;   7   15   27
+
+
+
+>> Prog1
+
+D1 = 22
+
+D2 =
+
+
+
+&nbsp;  18   22   26
+
+
+
+D3 =
+
+
+
+&nbsp;  13   17   21
+
+&nbsp;  14   18   22
+
+
+
+D4 =
+
+
+
+&nbsp;  19   20   21   22   23
+
+
+
+D5 =
+
+
+
+&nbsp;   6   14   26
+
+&nbsp;   7   15   27
+
+
+
+>>
+
+
+
+\## 13 Сохранение и загрузка области переменных 
+
+
+
+!\[Загрузка области данных](perem\_function.png)
+