Printing special characters in an axis label

How do you print special character(s) using sprintf? I want to use this or similar to add special characters to an axis label as in the following:

Here the degree sign doesn't print:

ylabel(sprintf('T at %.0f \circF',Temp))

Answer 1

[Walter Roberson]

Temp = -19.6

Temp = -19.6000

ylabel(sprintf('T at %.0f \\circF',Temp), 'Interpreter', 'tex')