Implicit relation

Definition

An equation in which both variables (usually represented by x and y) are related, but it is not explicitly expressed as y = f(x).

Related terms

Explicit relation: An equation where one variable (usually represented by y) can be directly solved for in terms of another variable (usually represented by x).

Parametric equations: Equations used to describe curves or graphs using parameters instead of expressing one variable explicitly in terms of another.

Symmetry:

A property indicating that certain transformations leave an object unchanged.