Adds a double dot accent to an identifier
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MATLAB live scripts support most MuPAD functionality, though there are some differences. For more information, see Convert MuPAD Notebooks to MATLAB Live Scripts.
Creates a new identifier with a double dot accent, such as a¨.
In physics, the double dot accent usually denotes the second derivative with respect to time:
Symbol::accentDoubleDot(x) = -x