?, help

Display a help page

MuPAD® notebooks will be removed in a future release. Use MATLAB® live scripts instead.

MATLAB live scripts support most MuPAD functionality, though there are some differences. For more information, see Convert MuPAD Notebooks to MATLAB Live Scripts.




help("word") or ?word displays a help page with information about the keyword word.

When you use help("word") interactively, you can use ?word as a shortcut. The ? command is not a MuPAD® function. You cannot use ? in expressions or in files. Do not enclose word in quotation marks, and do not terminate it with a semicolon.



Any keyword

Return Values

Void object null() of type DOM_NULL.

See Also

MuPAD Functions