The term you are looking for is ‘formula.’ A formula is a concise way of expressing information symbolically, as in a mathematical or chemical formula. In the context of natural laws, such as Newton’s laws of motion or the laws of thermodynamics, a formula represents the relationship between different quantities.
For instance, Newton’s second law of motion is often represented by the formula F = ma, which means that the force (F) acting on an object is equal to the mass (m) of the object times its acceleration (a). This formula not only encapsulates a fundamental principle of physics but also provides a framework for solving problems related to motion.
Formulas are essential in mathematics and science because they allow us to communicate complex ideas in a clear and manageable way, making it easier to apply these concepts in various scenarios.