Startmengder

Startmengder is a term used in Norwegian-language texts to refer to the initial quantities used to initialize a system, model, or experiment. In English-language contexts the concept corresponds to initial conditions or starting quantities.

In mathematics and physics startmengder designate the state of a system at the initial time t0. They are used as inputs to differential equations, difference equations, and simulations. In chemistry, startmengder describe the initial amounts of reactants before a reaction. In economics and operations research, they may refer to initial inventories, capital, or resource levels.

Notation: startmengder are often denoted by x0, x(0), or X at time 0. They form the basis for solving dynamic models and performing sensitivity analyses.

Examples: A population model with startmengder of 200 rabbits and 50 foxes; a chemical reactor with 2.0 moles of A and 1.5 moles of B; a logistics model with 100 units of inventory.

Origin and language: the term is of Norwegian origin; used in Scandinavian texts; in English texts the equivalent terms are initial conditions or starting quantities.