[Octave-bug-tracker] [bug #48088] document that issquare, iscolumn, isempty, etc operate on cell arrays

[Lachlan Andrew]

Follow-up Comment #3, bug #48088 (project octave):

The Matlab documentation often lists the types a function can be applied to.

However, "help isrow" for example, simply gives the definition in terms of
"size", without mentioning whether the argument is a matrix, a cell array or a
class object.

Perhaps "issquare" could say
  Return true of X has size(X) = [r, c] with r == c.

Francesco, would that be sufficient for you?

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