MATLAB: Str in a IF statement, PLEASE HELP

forifstrstring

Thats what I asked to do.
This is my code so far. But its not working for the str and complex part. Can anyone kindly help me?
p = input('To play the game, enter a shooting angle between -90 and 90 degree: ');
for i = 1 : p
if p(i) <= -90 || p(i) >= 90
    disp('Enter a real number between -90 and 90 degree!!!');
    break
elseif p(i) == 'str'
    disp('Enter a real number between (-90~90) rather than string');
    break
elseif p(i) == 'complex'
    disp('Enter a real number between (-90~90) rather than any complex number')
    break
end
end

Best Answer

Hi ,
Try Isstr to detect a string and isreal to detect a real number or complex number
for i = 1 : p
if p(i) <= -90 || p(i) >= 90
    disp('Enter a real number between -90 and 90 degree!!!');
    break
elseif isstr(p(i)) 
    disp('Enter a real number between (-90~90) rather than string');
    break
elseif isreal(p(i))==0
    disp('Enter a real number between (-90~90) rather than any complex number')
    break
end
end
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