Question

MATLAB QUESTION !!! PLEASE USE MATLAB FOR BOTH QUESTIONS!!! THANKS

3) Below is a matrix of random numbers. Find the mean, median, and mode of the matrix. B=[0 1 2 3 4 50689 23092 6 8 407] Sort Matrix Z so that the largest numbers of each row are in the first column and smallest numbers descend towards the last column. Must use sort function. 4) Create a matrix X so that the first row has values from 0 to 50 (default intervals), and the second row has values from 50 to 100. Let matrix Y equal to x10 and Z equal to x * y2 Create 4 subplots containing a mesh, surface, 3-Dimensional, and a surface-contour plot. Label with appropriate titles and labels. The plots should have a string look to them.

Answer 1

B=[0 1 2 3 4;5 0 6 8 9;2 3 0 9 2;6 8 4 0 7];
mean_B=mean(mean(B));
median_B=median(median(B));
B=[flip(sort(B(1,:)));flip(sort(B(2,:)));flip(sort(B(3,:)));flip(sort(B(1,:)))];
fprintf("Mean of matrix B is: %f\n",mean_B);
fprintf("Meadian of matrix B is: %f\n",median_B);
disp("Sorted matrix is:\n");
disp(B);

C:\Octave\OCTAVE-1.0\mingw64\bin\octave-gui.exe octave:43> B=[0 1 2 3 4;5 0 6 8 9;2 3 0 9 2;6 8 4 0 7]; octave:44> mean_B=mean(mean(B)); octave:45> median_B=median(median(B)); octave:46> B=[flip(sort(B(1,:))); flip(sort(B(2,:)));flip(sort(B(3,:)));flip(sort(B(1,:)))]; octave:47> fprintf("Mean of matrix B is: %f\n", mean_B); Mean of matrix B is: 3.950000 octave:48> fprintf("Meadian of matrix B is: %f\n", median_B); Meadian of matrix B is: 3.500000 octave:49> disp("Sorted matrix is: \n"); Sorted matrix is: octave:50> disp(B); 4. 3 2 1 0 9 8 6 5 0 9 3 2 2 0 4. 3 2 1 0 octave:51> o 1 1 Type here to search D C ENG 08:55 30-07-2020

Please find the attached code..

clc;
clear all;
X = [0:1:50; 50:1:100];    % Here, 1 is interval (You can change it as per your needs)
Y = X.^10;
Z = X.*(Y.^2);
subplot(2,2,1);
mesh(X,Y,Z);
xlabel('X');
ylabel('Y');
zlabel('Z');
title('Mesh plot');
subplot(2,2,2);
surf(X,Y,Z);
xlabel('X');
ylabel('Y');
zlabel('Z');
title('Surface plot');
subplot(2,2,3);
plot3(X,Y,Z);
xlabel('X');
ylabel('Y');
zlabel('Z');
title('3-Dimentional plot');
subplot(2,2,4);
surfc(X,Y,Z);
xlabel('X');
ylabel('Y');
zlabel('Z');
title('Surface-Contour plot');
grid on;

The subplot command will create a figure grid for plots. Eg. subplot(i,j,k), it will create a figure grid with i rows and j columns (i*j number of figures), and 'k' is a figure number.

The output will look like..

Mesh plot Surface plot *1041 x 1041 10 10 N 5 N 5 10 10 100 100 1019 *1019 50 5 50 Y 0 0 X 3-Dimentional plot 5 Y 0 0 X Surface-Contour plot *1041 x1041 10 10 N 5 N 5 10 10 100 100 5 *1019 50 5 *2019 50 Y 0 0 х Y 0 0 х