Why my code miscalculates conversions?
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You can see my progress below. I'm so confused because when I try to calculate 0C to K, my code perfectly calculates 1F to K. I couldn't check other wrong answers but probably I messed up those if/elseif statements. I'm not looking for the working code so study sources are welcome too.
prompt={'Enter temperature','Enter unit of temperature (C, F or K)','Enter unit of temperature wanted (C, F or K'};
dlgtitle='Temperature Converter CFK';
dims = [1 1 1];
user_input=inputdlg(prompt,dlgtitle,dims);
if strcmp(user_input{2},'C')
t1= str2double(user_input{1});
elseif strcmp(user_input{3},'F')
t1f=((t1*(9/5))+32);
end
if strcmp(user_input{2},'C')
t1= str2double(user_input{1});
elseif strcmp(user_input{3},'K')
t1f=(t1+273.15);
end
if strcmp(user_input{2},'F')
t1= str2double(user_input{1});
elseif strcmp(user_input{3},'C')
t1f=((t1-32)*(5/9));
end
if strcmp(user_input{2},'F')
t1= str2double(user_input{1});
elseif strcmp(user_input{3},'K')
t1f=(((t1-32)*(5/9))+273.15);
end
if strcmp(user_input{2},'K')
t1= str2double(user_input{1});
elseif strcmp(user_input{3},'C')
t1f=(t1-273.15);
end
if strcmp(user_input{2},'K')
t1= str2double(user_input{1});
elseif strcmp(user_input{3},'F')
t1f=(((t1-273.15)*(9/5))+32);
end
msgbox ([num2str(t1f) , user_input{3}])
采纳的回答
Walter Roberson
2023-4-6
if strcmp(user_input{2},'C')
t1= str2double(user_input{1});
That statement is executed any time the second input is 'C'
elseif strcmp(user_input{3},'F')
t1f=((t1*(9/5))+32);
That statement is only executed if the second input is not C but the third input is F
You want more like
if strcmp(user_input{2},'C') && strcmp(user_input{3},'F')
2 个评论
Les Beckham
2023-4-6
Yes. And this line should appear only once above the if tests:
t1= str2double(user_input{1});
with only t1f being calculated inside the if tests.
Emir
2023-4-6
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