yhtälöiksi

Yhtälöiksi is a Finnish noun form used to express turning something into equations or presenting it as equations. It is the translative plural form of yhtälö, meaning equation, and the suffix -ksi conveys a change of state or a role. Thus yhtälöiksi describes the result or form of being equations, specifically when multiple equations are involved.

In mathematics and scientific modeling, problems and conditions are often reformulated into a set of equations. Phrases such as "Ongelma voidaan muotoilla yhtälöiksi" (the problem can be formulated as equations) and "järjestelmä yhtälöiksi" (a system converted into equations) are common. Using yhtälöiksi emphasizes that the description has been translated into a mathematical framework, typically to enable analysis, solving, or computational treatment. The concept is tied to various types of equations, including linear, polynomial, differential, and other systems, depending on the modeling needs.

Grammatically, yhtälöiksi denotes multiple equations and contrasts with the singular form yhtälöksi, which refers to a single equation. The translative case marks a change of state or role, so the phrase is used when something is being treated as, or converted into, equations. Related terms include yhtälö and, in context, different classes of muodostettavat jaetut tai määriteltävät yhtälöt such as lineaariset yhtälöt or differentiaaliyhtälöt. See also: yhtälö, lineaarinen yhtälö, järjestelmä.