In Hinduism, the nagas ("snake") are an ancient race of snake-humans that brought fertility to their venerators; they were especially popular in southern India. They are Varuna's servants. Nagas live in a type of palace called Patala[?], many of which are in Bhogavati[?], an underground city. For Malay sailors, nagas are a type of dragon with many heads; in Thailand and Java, the naga is a wealthy underworld deity. They are children of Kasyapa.
... form of the quadratic formula is not ideal. See Loss of significance for details.
Derivation
The quadratic formula is derived by the method of completing the square[?]. ...