I need help with a loop.

The program that I am creating needs to go through all of the steps for multiple people until 0 is entered.

For example:

The height and weight will be entered for multiple people and will output multiple BMI's until zero is entered, and then the program will stop, but I don't know how to allow multiple people to input their data.

[Azzi Abdelmalek]

What do you mean?

Answer 1

[Cedric]

You could start with something like:

 personCnt = 0 ;

 while true
     fprintf('\n--- Person %d\n', personCnt+1) ;

     height = input('Enter your height : ') ;
     if height == 0,  break ;  end
     weight = input('Enter your weight : ') ;
     if weight == 0,  break ;  end

     personCnt = personCnt + 1 ;

     % Compute/store/output BMI.

 end

Answer 2

[Youssef Khmou]

hi Anna , there are many ways to control the inputs :

try this :

 index=1;
 a=rand(1);
 b=rand(1);
 while (a~=0) ||(b~=0)

    fprintf('enter height of individual %i in cm\n',index); 
    a=input('');
    fprintf('enter weight of individual %i in Kg\n',index);
    b=input('');
   index=index+1;

   BMI=rand(1) %  You enter the BMI formula here

 end

Now you can create matrix A(m,n) to store the inputs for statistical analysis ,

[Anna Bradley]

Since this is for a class, it is required that we do it the way that our professor wants. She says that our new commands shoud be "two prompt/input to 1-start and 2-continue loop."

[Youssef Khmou]

ok i see, is it a homework? well then complete answer should be not given , only highlights

[Youssef Khmou]

hi , first i made a mistake using the OR operator , i had to use && instead , you had to be aware of that then, ok you try this enhanced version :

 fprintf(' Welcome to Anna''s program : ) \n');
 fprintf(' Enter :\n\t\t1.start\n\t\t3.exit\n');
 I=input('');

 if I==1

 index=1;
 a=rand(1);
 b=rand(1);
 while ((a~=0.00) && (b~=0.00))
    fprintf('enter height of individual %i in cm\n',index); 
    a=input('');
    fprintf('enter weight of individual %i in Kg\n',index);
    b=input('');
   index=index+1;
   BMI=rand(1) %  You enter the BMI formula here
 end
 fprintf(' Zeros value entered :  Program exits');

 elseif I==3

    ;
end