How do i implement a while loop in my if loop

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Benjamin 2022-11-22

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https://ww2.mathworks.cn/matlabcentral/answers/1859358-how-do-i-implement-a-while-loop-in-my-if-loop

评论： Jan 2022-11-22

I am trying to create a while loop which only occurs if the value of one of my variables is zero, but my loop isnt working. how do i impliment this condition correctly?

if v == 0
    a = 0;
elseif v~= 0 
    aStr = input ('What is your value for angle of projection?: ' , 's'); %angle of projection
a = str2double(aStr);
while ~isnumeric(a) || isnan(a) || ~isreal(a) || a > 90 || a == 0 && h == 0 || 
if isnan(a)
    disp('This is not a number.')
elseif ~isreal(a)
disp('This is not a Real number')
elseif a > 90
    disp('your angle of projection cannot be higher than a right angle')
elseif a == 0 && h == 0
    disp('Your angle of projection must be greater than zero if your height is zero')
end
 aStr = input ('What is your value for angle of projection?: ' , 's'); 
a = str2double(aStr);
end