Write a Matlab program that asks the user to enter the seven digits of the z-num

Question

Write a Matlab program that asks the user to enter the seven digits of the z-number and define the positive number a as the range (difference between the maximum and minimum) of z . Then create x and y vectors from -a to +a with spacing 0.05. Use the meshgrid function to map x and y onto two new two-dimensional arrays called X and Y. Use your new arrays to calculate the vector Z, with magnitude. Z= sin(sqrt((x2+y2)))

Use the subplot function to generate the following 3D plots on one page:

(a) Use the plot3 function to create a three-dimensional plot of Z.

(b) Use the mesh function to create a three-dimensional plot of Z.

(c) Use the surf function to create a three-dimensional plot of Z.

(d) Use the contour function to create a three-dimensional plot of Z.

(e) Generate a combination of surface and contour plot of Z.

Don

Explanation / Answer

v1=input('Enter 1st number: ');
v2=input('Enter 2nd number: ');
v3=input('Enter 3rd number: ');
v4=input('Enter 4th number: ');
v5=input('Enter 5th number: ');
v6=input('Enter 6th number: ');
v7=input('Enter 7th number: ');
z=[v1,v2,v3,v4,v5,v6,v7];

a=max(z)-min(z);
x=-a:0.05:a;
y=-a:0.05:a;
[X Y]=meshgrid(x,y);
f=@(X,Y) sin(sqrt(X.^2+Y.^2));
Z=f(X,Y);
%plot3(X,Y,Z)

subplot(2,3,1)
plot3(X,Y,Z);
xlabel('X')
ylabel('Y')
zlabel('Z')
title('Using plot3');

subplot(2,3,2)
mesh(X,Y,Z)
xlabel('X')
ylabel('Y')
zlabel('Z')
title('Using mesh')

subplot(2,3,3)
surf(X,Y,Z)
xlabel('X')
ylabel('Y')
zlabel('Z')
title('Using surf')

subplot(2,3,4)
contour(X,Y,Z)
xlabel('X')
ylabel('Y')
zlabel('z')
title('Using Contour')

subplot(2,3,5)
surfc(X,Y,Z)
xlabel('X')
ylabel('Y')
zlabel('Z')
title('Surfce and contour plot')

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