Not deviating or varying from uniformity; not interrupted; not joined or articulated.
Expressing an ongoing action or state.
Such that, for every x in the domain, for each small open interval D about f(x), there's an interval containing x whose image is in D.
Without stopping; without a break, cessation, or interruption.
Without intervening space; continued.
Such that each open set in the target space has an open preimage (in the domain space, with respect to the given function).
Not obligate; optional, discretionary or elective.
That grants permission or power to do something.
Able to perform a particular life function, or to live generally, in more than one way.
Of or relating to faculty, especially to mental faculty.
At which a given function is positive.