I would like to display my results in a table containing the number of iterations of the for loop and their solution

Question

Reem Saleh 2022-12-10

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https://ww2.mathworks.cn/matlabcentral/answers/1875282-i-would-like-to-display-my-results-in-a-table-containing-the-number-of-iterations-of-the-for-loop-an

回答： Naman Kaushik 2023-6-19

clear

clc

disp('Welcome to calculation program')

n=input('Please enter the number of iterations=');

x=input('Please enter the value of vector x=');

for i=1:1:n

x(i+1)=x(i)-((2*x(i)*tan(x(i))-1)/(2*tan(x(i))+2*x(i)*(sec(x(i))^2)));

fprintf('The value of iteration no.%1.0f of vector x is=%2.4f\n',i,x(i+1))

plot(i,x,'*b')

hold on

xlabel('Number of iterations')

ylabel('x values')

grid on

if x(i)==x(i+1)

break

end

for i=1:1:n

if x(i)~=x(i+1)

disp('The maximum number of iterations have been reached')

y=input('To re-run press 1 and to stop press any number=');

if y==1

midexam3

elseif y~=1

break

end

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Answer 1

Naman Kaushik 2023-6-19

在 MATLAB Online 中打开

Hi Reem,

As per my understanding, you want to tabulate your results for different iterations.

You could try using the “uitable” function in MATLAB. It needs two parameters, namely “Data” and “Position”, which is specified as a four-element vector of the form [left bottom width height].

You can find the updated code below:

clear;
clc ;
disp('Welcome to calculation program') 
n=input('Please enter the number of iterations='); 
Cell_Array = cell(n ,2); 
Headers = {"Iterations", "Results"}; 
x=input('Please enter the value of vector x='); 
for i=1:1:n 
    x(i+1)=x(i)-((2*x(i)*tan(x(i))-1)/(2*tan(x(i))+2*x(i)*(sec(x(i))^2))); 
    Cell_Array{i, 1} = i; 
    Cell_Array{i, 2} = x(i+1); 
fprintf('The value of iteration no.%1.0f of vector x is=%2.4f\n',i,x(i+1)) 
plot(i,x,'*b') 
hold on 
xlabel('Number of iterations') 
ylabel('x values') 
grid on  
 if x(i)==x(i+1) 
        break 
 end 
end 
hold off; 
% Display the table 
figure; 
uitable('Position', [20 20 260 160], 'Data', Cell_Array, 'ColumnName', Headers); 