In computational complexity theory, the complexity class E is the set of decision problems that can be solved by a deterministic Turing machine in time 2O(n) and is therefore equal to the complexity class DTIME(2O(n)).
E, unlike the similar class EXPTIME, is not closed under polynomial-time many-one reductions.
Relationship to other classes
E is contained in NE, as E is the deterministic-time analogue of the nondeterministic class NE.





