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islocked()

Usage:

islocked(arg1 [, arg2, ...])

Keywords: general, variables

islocked(arg) returns True if arg is a locked variable and False
otherwise.  If arg is undefined, islocked() returns False.

islocked(arg1, arg2, ..., argk) returns a LOGICAL vector, each element
of which is True or False depending on whether or not the corresponding
argument is locked.

See also lockvars(), unlockvars(), 'variables:"locked_variables"'.