Code loop logic issue

Hi,

Im trying to make a takeoff weight estimation code formy course and im having some issues trying to figure out the logic for then code. the code is meant to calculate a value of weight using a set of predetermined values and compare it to the guessed value which is input. I have it set up so that if the calculated value does not match the guessed one its meant to loop the code using a new value. However i can only get it to don one loop before stopping, Any help would be appreciated.

Thank you

close;
clear;

Wguess=input('input weight guess');
WTO=input('input original weight');
WE=input('input empty weight');
WF=input('input fuel weight');
WPAY=input('input payload weight');

AW0=WE/WTO;
WFRAC=WF/WTO;


Wcalc=(WPAY)/(1-WFRAC-AW0);

if Wcalc==Wguess
    WTO=Wcalc;

else 
    Wguess=Wcalc;
Wcalc=(WPAY)/(1-(WF/WTO)-(WE/WTO));

end

Answer 1

[Tushar Behera]

Hi Takura

I believe you want to loop through the code until the guessed value is equal to the calculated value.

In order to acheive that you can use a while loop to iterate over your code. For example,

close;
clear;

Wguess=input('input weight guess');
WTO=input('input original weight');
WE=input('input empty weight');
WF=input('input fuel weight');
WPAY=input('input payload weight');

AW0=WE/WTO;
WFRAC=WF/WTO;

% Start a while loop to repeat the process until the guessed value is correct
while Wcalc ~= Wguess
    Wcalc=(WPAY)/(1-WFRAC-AW0);

    % Check if the calculated value matches the guessed value
    if Wcalc==Wguess
        WTO=Wcalc;
        break;
    end

    % Update the guessed value for the next iteration
    Wguess=Wcalc;
    Wcalc=(WPAY)/(1-(WF/WTO)-(WE/WTO));
end

% Display the final takeoff weight
disp(['The takeoff weight is: ' num2str(WTO)])

I hope this resolves your query.

Regards,

Tushar