Why am I getting this error "Operands to the || and && operators must be convertible to logical scalar values."

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Porgs
Porgs 2018-4-18
评论： Star Strider 2018-4-18
function ThCond
alloy = input('Enter the type of metal alloy:', 's');
T = input('Enter temperature(K) to calculate thermal conductivity:','s');
switch alloy
case 'Al2'
if (298 <= T) && (T <= 840)
k = 149.7+0.0809*T-(1*10^(-4))*(T^2);
fprintf('\nThe thermal conductivity(k_s) is $%6.2f\n', k')
elseif (298 <= T) && (T <= 773)
k = 76.64 + 0.2633*T - (2*10^(-4))*(T^2);
fprintf('\nThe thermal conductivity(k_s) is $%6.2f\n', k')
else
disp('Invalid Temperature Input!');
end
end
end

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采纳的回答

Star Strider
Star Strider 2018-4-18

Delete the 's' from the temperature input. You want a number, not a string.

T = input('Enter temperature(K) to calculate thermal conductivity: ');

Then it works.

更多回答（1 个）

Porgs
Porgs 2018-4-18
Thank you

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