VERB + CONVERGENT
expressed
CONVERGENT + NOUN
direction, sequence, series
PREP.
in
adj
That converges or focuses; converging
Of a (typically infinite) sequence or series in a topological space, converging to a (finite, proper) limit.
convergent direction
noun
The rational number obtained when a continued fraction is terminated after a finite number of terms.
A convergent sequence is bounded.
A holomorphic function can be expressed as a convergent power series in a neighborhood of any point in its domain.