How do I make an efficient While loop? setting true = 0, then while true = 0, results in an error on the while line. of code. What is wrong with that logic?

I want to run this while loop, and want to make sure i am doing it an efficient manner. I'm a beginner level matlab user in college. I want the loop to run until I meet the condition that WoCalculated be within 99.99% of WoGuess.

Wfinal_Wo = FinalLand.*ReturnCruise_Wi.*TotalClimbingWeightFraction.*TotalLandingWeightFraction.*w3_w2.*w2_w1.*w1_wo;
Wfuel_Wo = 1.06.*(1-Wfinal_Wo);
WoGuess = 95000;
WoCalculated = 1;
% Wempty_Wo = 1.09*Wo.^-.05
true = 0;
while true = 0
    We_Wo = 1.09.*WoGuess.^-.05;

%Weight of water and crew is 25,500 and 750 respectively    
WoCalculated = (26250)./(1 - Wfuel_Wo - We_Wo);
    if (WoCalculated/WoGuess) >= .9999 
        true = 1;
    else 
        WoGuess = WoCalculated;

      end
  end

Answer 1

[jonas]

Use == for logical operations. Also do not call your variable true. Writing

while true=0

is very counterintuitive, as true has a specific meaning in matlab.