ScienceAugust 23, 2026

variational

VAIR-ee-AY-shuh-nul

Definition

Relating to or involving the calculus of variations, a mathematical method used to find functions that minimize or maximize specific values, such as energy or action in a physical system.

Etymology

Derived from the Latin 'variatio,' meaning 'a changing' or 'an alteration.' It entered English to describe things characterized by fluctuation or, in a mathematical context, methods involving the variation of functions.

In the news

In this article, the 'Hamel variational integrator' refers to a specific numerical method derived from Hamilton’s principle that helps astronomers simulate asteroid motion by preserving physical properties over time.

Astronomers develop a faster way to simulate the complicated motion of binary asteroids

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