constant

A constant is a mathematical term that refers to a value that is considered unchanging or immutable in a given context. Constants are used in mathematics, physics, engineering, and other scientific disciplines to represent certain values, parameters, or properties that do not manifest themselves as variables and have no dependence on other variables.

Constants can take different forms, meaning that their value is always the same, regardless of the circumstances or variables they may be associated with. These can be numerical constants such as the number π (pi) or Euler's number e, or physical constants such as the speed of light in a vacuum (the c constant) or the gravitational constant G.

Constants are important in mathematical and physical relationships because they allow expressing relationships and laws that apply under certain conditions. Their constant value provides certainty and predictability of results and makes it possible to compare different situations and phenomena.

It is important to recognize that there may be different constants in different contexts and disciplines. For example, in mathematics, constants may be associated with geometric relationships, trigonometric functions, and the like, while in engineering, constants may be used to characterize materials, gear ratios, and the like.