Shiva is One of the Trinity of Gods in Hinduism who is responsible for the cycles of destruction/preservation/creation. He is the one who destroys the Universe and brings about a new cycle of Creation.
Atom
the basic unit of a chemical element
an extremely small amount of a thing or quality
O(m) Based on the Big-O Notation, the O(m) in atom could denote the complexity in terms of M instead of n for time.
O(M) = ∞
OM is also the sounds of the universe ॐ
Shiva is also considered as that principle, that energy behind all animate/inanimate objects in the Universe.
Shiva is the eternal silence and pure awareness.