Practical sheet | REF: FIC1454 V1

Law of a phenomenon

Author: Laurent LEBLOND

Publication date: February 10, 2015 | Lire en français

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2. A few words about foreseeable phenomena

A predictable phenomenon can be represented by a mathematical function that relates the output quantity (the phenomenon under study) to input quantities that explain the behavior of the output quantity. This is a "deterministic" model of the reality under study.

For example, we know that the size of a room is a function of its temperature at the time of observation. The mathematical model describing the behavior of part length as a function of temperature is given by the following formula:

Longueur θ = Longueur θRéférence×(1+λMatière×(θAmbiantθRéférence(=20°C)))

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