Write a script that will loop to prompt the user for n circle radii. The script will call a function to calculate the area of each circle, and will write the results in sentence form to a file

Ch9Ex27.m

% Write the areas of circles to a file

% Prompt the user for the radii

n = 5; 

%Open a new file for writing

fid = fopen('circles.dat','w');

for i = 1:n

 radius = input('Enter the radius of a circle: ');

 while radius <= 0 %Error-check user input

 radius = input('Enter the radius of a circle: ');

 end

 area = calcarea(radius);

 %Write to file "circles.dat"

 fprintf(fid,'The area of circle #%d is %.2f\n',i,area);

end

%Error-check file close

closeresult = fclose(fid);

if closeresult == 0

 disp('File close successful')

else

 disp('File close not successful')

end