Can you help plot graph please

With the code below, the values ​​in the above table are reached. Can you draw the graph above accordingly?

Values ( L = 1.5 q = 0.0011 T = 11 dx = 0.25 R = 1 k = 100 dt = 0.0025 r = 16)

clc;

clear all;

L=input ('L:');

q=input('q:');

T=input('T:');

dx=input('dx:');

R= input('R:');

k=(T/q)^(1/2)

dt=R*dx/k

r= input('r');

c=L/dx+1;

u(1,1)=0;

u(1,c)=0;

u=zeros(r,c)

x=0:dx:L

%ilk satır hesaplamaları

for j=2:c-1

if (j<5)

u(1,j)=0.07*x(j);6,

else

u(1,j) = 0.21-0.14* x(j);

end

end

%ikinci satir hesaplamalari

for j = 2:c-1

u(2,j) = (u(1,j-1)+u(1,j+1)) / 2;

end

%diger satir hesaplamalari

for i = 3:r

for j = 2:c-1

u(i,j) = u(i-1,j-1)+u(i-1,j+1)-u(i-2,j);

end

end

%Matrisi yazdirma

for i = 1:r

for j = 1:c

fprintf('%.6f \t',u(i,j));

end

fprintf('\n');

end

Answer 1

[Amey Waghmare]

As per my understanding, you have created a table ‘u’ and and want to plot its rows against a vector ‘x’.

In order to plot a graph, you can use ‘plot’ function and specify the data as vector ‘x’ and ‘u(1,:)’. The plot function also allows you to specify Line Style, Color and Marker. Specifying ‘b--o’ in the plot function will set the plot with blue dashed line and circle markers. For instance the command,

plot(x, u(2,:), ‘g-^’)

will plot a graph between ‘x’ and ‘second row of matrix u’ using a green line with triangular markers and display it in a new figure window. Similarly, graphs can be plotted for the remaining rows of matrix u. To know more about the plot function, please refer to the following documentation: https://in.mathworks.com/help/matlab/ref/plot.html

In order to display all the graphs in the same figure window, you can use ‘hold on’ command. The following lines of code will display all the 3 graphs in the same figure window.

plot(x, u(1,:), 'b--o') 
hold on 
plot(x, u(2,:), 'g--^') 
plot(x, u(3,:), 'r-*') 

To know more about the hold command, please refer the following documentation: https://in.mathworks.com/help/matlab/ref/hold.html