cúbico

Cúbico is a term used in mathematics and geometry to describe objects or concepts related to cubes or the third power of a number. In geometry, a cubic shape is one that has three dimensions: length, width, and height, all typically of equal measure in the case of a perfect cube. This results in six square faces, twelve edges, and eight vertices. The volume of a cube is calculated by cubing the length of one of its sides.

In algebra, "cúbico" refers to a polynomial of degree three. A cubic polynomial has the general form ax³ + bx² + cx + d, where a, b, c, and d are coefficients and 'a' is not zero. Cubic equations, which are equations where a cubic polynomial is set equal to zero, can have up to three real roots. Solving cubic equations can be more complex than solving linear or quadratic equations, often involving specific formulas or numerical methods.

The term also appears in other contexts. For instance, cubic meters (m³) are a standard unit of volume in the metric system, representing the space occupied by a cube with sides of one meter. Cubic feet (ft³) serve a similar purpose in the imperial system. In fields like physics and engineering, phenomena involving volume, density, or three-dimensional growth might be described using cubic relationships. The concept of cubing a quantity, that is, raising it to the power of three, is fundamental to these applications.