# if statement with vector

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Ireedui Ganzorig el 12 de Mzo. de 2020
Comentada: Ireedui Ganzorig el 12 de Mzo. de 2020
Hello MATLAB community,
Everything was just working when temps was a scalar; however, I couldn't figure out why my code is not giving me 3 corresponding results for the vector temps. I am expecting 3 answers such that -1 is solid, 1 is liquid and 101 is gas.
Thank you.
temps = [-1 1 101];
F = 9/5 .* temps + 32;
if F <= 32
disp(['The Fahrenheit temperature is ', num2str(F)])
disp('solid')
elseif F > 212
disp(['The Fahrenheit temperature is ',num2str(F)])
disp('gas')
elseif F < 212 && F > 32
disp(['The Fahrenheit temperature is ',num2str(F)])
disp('liquid')
end
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### Respuestas (1)

Bhaskar R el 12 de Mzo. de 2020
You are checking all values in the if conditioning, it gives pass condition if and only of all values are true, to avoid your situation use for loop to check each value of F
temps = [-1 1 101];
F = 9/5 .* temps + 32;
for ii=1:length(F)
if F(ii) <= 32
disp(['The Fahrenheit temperature is ', num2str(F(ii))])
disp('solid')
elseif F(ii) > 212
disp(['The Fahrenheit temperature is ',num2str(F(ii))])
disp('gas')
elseif F(ii) > 32 & F(ii)< 212
disp(['The Fahrenheit temperature is ',num2str(F(ii))])
disp('liquid')
end
end
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Ireedui Ganzorig el 12 de Mzo. de 2020
thank you very much. I really appreciate it.

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