Superlinear growth is growth of an eventually positive real-valued function faster than any constant multiple
of
as
tends to infinity. It is characterized by the limit
Equivalently,
in little-omega notation (Cormen et al.
2001, p. 48). The same definition applies to a sequence
as
.
For example,
and
for every fixed
have superlinear growth. A linear function
with
has linear growth instead,
since its ratio to
is the constant
. Superlinear growth need not be bounded below by
for any fixed
and
. In particular,
grows more slowly than every such power, since
for every fixed
.
This meaning is distinct from superlinear convergence, which concerns the decrease of errors in a convergent sequence.