Fahrenheit function but confused on the output.

Hello MATLAB community,

I feel like I did everything right, but the function output is really confusing me. Or did I do everything wrong in the first place?

This is function output.

0 = solid

1 = liquid

2 = gas

Below is my code.

function [state] = h2oState(tempF)

C = input('Please enter your Celsius value to be converted into Fahrenheit ');

tempF = 9/5 * C + 32;

if tempF <= 32
    
    disp(['The Fahrenheit temperature is ',num2str(tempF)])
    disp('solid')

elseif tempF > 212
    
    disp(['The Fahrenheit temperature is ',num2str(tempF)])
    disp('gas')
 
else
    
    disp(['The Fahrenheit temperature is ',num2str(tempF)])
    disp('liquid')

end
end

Answer 1

[Rik]

You are overwriting the input to your function by asking the user for the temperature in Celsius. You are also not assigning any value to your output variable state.

You probably want something like this:

function state = h2oState(C)

tempF = 9/5 * C + 32;

if tempF <= 32
    disp(['The Fahrenheit temperature is ',num2str(tempF)])
    disp('solid')
    state=0;
elseif tempF > 212
    disp(['The Fahrenheit temperature is ',num2str(tempF)])
    disp('gas')
    state=2;
else
    disp(['The Fahrenheit temperature is ',num2str(tempF)])
    disp('liquid')
    state=1;
end
end

[Shannon Wagoner]

star