In mathematics, the term quartic describes something that pertains to the "fourth order", such as the function <math>x^4</math>. It may refer to one of the following:
- Quartic function, a polynomial function of degree 4
- Quartic equation, a polynomial equation of degree 4
- Quartic curve, an algebraic curve of degree 4
- Quartic reciprocity, a theorem from number theory
- Quartic surface, a surface defined by an equation of degree 4
See also
- Quart (disambiguation)
- Quintic, relating to degree 5, as next higher above quartic
- Cubic (disambiguation), relating to degree 3 or a cube, as next lower below quartic