Definition:Cubic

Definition

Cubic is a word describing a mathematical expression relating to the $3$rd degree.

Shape of Cube

Cubic is an adjective which means in the shape of a cube.

Cubic equation

A cubic equation is a polynomial equation of the form:

$a x^3 b x^2 c x d = 0$

Cubic polynomial

A cubic polynomial is a polynomial of degree $3$.

Cubic curve

A cubic curve is an algebraic curve which has degree $3$.

That is, a cubic curve is an algebraic curve which is the locus of an equation of the $3$rd degree.

Cubic graph

A cubic graph is a $3$-regular graph, that is, a graph whose vertices all have degree $3$.

Also see

• Results about cubic can be found here.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): cubic
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): cubic