MATLAB: Hi,I have a question about displaying perfectnumbers

homeworkMATLABscript

I have done the script to display perfect numbers between these two numbers however my command keeps telling me that I have an undefined function or variable 'isperfect' hope someone could help me solve the issue ><

a=input('enter minimun integer number>1:');
b=input('Enter maximun integer number:');
fprintf('perfect numbers between %d and %d are:',a,a);
for i=a:b
    if isperfect(i)~=0
        fprintf('%d',i)
    end
end

Best Answer

You need to write the function "isperfect". MATLAB isn't finding it on your path.

Also, you have a typo. That second number in your "between" should be b, not a.

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MATLAB: While loop??

I didn't know where to start, so look at this. I tried to preserve your code as much as possible

[edit]

clc;clear
number=1+round(rand*(9));
guess = 0;
total=0;
while guess~=number
      if(guess<1 || guess>10);
          disp('Invalid')
               % removed elseif case here based on Fangjun's comment
      else
          disp('incorrect, guess again');
      end
      total=total+1;
      guess = input('Enter a number between 1 and 10:');
  end
  fprintf('You guessed the correct number %g in %g attempts\n',guess,total);

MATLAB: How can i write code on this

a=input('Enter a\n');
b=input('Enter b\n');
if ~mod(a,b)
   y=0
else
   y=b-mod(a,b)
end

Best Answer

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