In computational complexity theory, non-deterministic space or NSPACE is the computational resource describing the memory space for a non-deterministic Turing machine. It is the non-deterministic counterpart of DSPACE.
The measure NSPACE is used to define the complexity class whose solutions can be determined by a non-deterministic Turing machine. The complexity class NSPACE(f(n)) is the set of decision problems that can be solved by a non-deterministic Turing machine, M, using space O(f(n)), where f(n) is the maximum number of tape cells that M scans on any input of length n.
Several important complexity classes can be defined in terms of NSPACE. These include:
The Immerman–Szelepcsényi theorem states that NSPACE(s(n)) is closed under complement for every function s(n) ≥ log n.
I'm here with the others
Who saw the Heavens testify
Now I hang back in the shadows
I wanna come close, I wanna know
She sees me shiverin' here
She smiles and with a nod
I walk through the mud and straw
To the newborn son of God
Come, let us adore Him
He has come down to this barren land
Where we live
And all I have to give Him is adoration
He raises a wrinkled hand
With the dust and the flies
Wrapped in rags like we are
And with barely open eyes
He takes my finger
And He won't let go and He won't let go
It's nothin' like I knew before
And it's all I need to know
Come, let us adore Him
He has come down to this barren land
Where we live
And all I have to give Him is adoration
Come, let us adore Him
He has come down to the world we live in
And all I have to give Him is adoration
God is with us here
Our Emmanuel
God is with us here
Our Emmanuel
Oh come let us adore Him
Oh come let us adore Him
Jesus, our Emmanuel
Is with us here and He won't let go
Oh come let us adore Him
Oh come let us adore Him
He has come down to the world we live in
And all I have to give Him is adoration
Oh come let us adore Him
Come let us adore Him
He has come down to the world we live in
And all I have to give Him is adoration
Oh come let us adore Him
Come let us adore Him
He has come down to the world we live in
And all I have to give Him is adoration
Come let us adore Him
Come let us adore Him