How to load numbers in my array through a while true loop ?

Hello, I want to add in my array ( w ) any numbers( between ( 0 , pi ) ) the user will give until he presses anything else to break the while true loop. What am i doing wrong in my code and:

Firstly it does not stop by giving anything else, and secondly the number I give do not append in my w list.

K = 26
w = linspace ( 0 , pi , 10*K );
a = '~';
while true;
    a = input('Do you want to add a frequency ? (y/n) ——>','s');
    if not(a == 'y')
        break;
    elseif strcmpi(a,'y')
        while true;
            number = input('Put a number between (0,π): ' , 's');
            if isnan(number) || fix(number) ~= number
                break;
            elseif number < pi
                number = input('Put a number between (0,π) again if you want: ' , 's');
                w = [ w , str2num(number) ];
            else
                disp('Number is bigger than π. Please choose again:' );
            end
        end
    end
end

Thank you for your help!

Answer 1

[David Hill]

Not sure what you want to do. I guessed.

K = 26
w = linspace ( 0 , pi , 10*K );
while true
    a = input('Do you want to add a frequency ? (y/n) ——>','s');
    if ~isequal(a,'y')
        break;
    else
        while true;
            number = input('Add a frequency between (0,π): ');
            if isnan(number) || number>=pi || number<=0
                disp('Your frequency is not between (0,π)');
            else
                w = [ w , number ];
                break;
            end
        end
    end
end

[marios semer]

It worked mate. It seems you made it work without understanding XD. Thank you so much.