Please examine the texts provided thoroughly to identify and correct any spelling, typographical, grammatical, OCR (optical character recognition), and mathematical errors, including any errors related to the square root symbol. Ensure that the entire text is properly formatted and presented in a clear, coherent manner. Only correct errors, Do not answer it.
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Texts: Transform it into a graphical interface (GUI). Provide the space for the user to enter the required data and obtain the results with the printed units.
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% Prompt the user to enter the value of k
prompt = 'Enter the value of k: ';
dlgtitle = 'Input';
dims = [1 35];
definput = {'0.25'};
answer = inputdlg(prompt, dlgtitle, dims, definput);
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% Convert the input value to a double
k = str2double(answer{1});
% Rest of the code remains the same..
syms u; % Define symbolic variable
p = (k*u*(1-u))/(k+u); % calculate the non-dimensional mechanical power output p
% Plot p versus u
fplot(p,[0, 1])
xlabel('u')
ylabel('p')
title('Mechanical Power Output vs Shortening Velocity')
% Find the value of u where p is maximum
dpdu = diff(p, u); % differentiate p with respect to u
umax = double(solve(dpdu == 0, u)); % solve dp/du = 0 to find the value of u where p is maximum
% Find the maximum value of p
pmax = subs(p, u, umax); % substitute umax into p to calculate the maximum value of p
fprintf('The maximum value of p is %.4f at u = %.4f
', pmax, umax)