Whiskey is the American spelling of the term whisky. Some writers reserve "whiskey" for the spirits distilled in the United States and Ireland and "whisky" for those distilled in Great Britain and Canada--but there are many exceptions. The Welsh version is "wysgi".
... coefficients a, b and c, which are assumed to be real (but see below for generalizations) with a being non-zero. These solutions are also called the roots of the equation. ...