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Differential algebraic equation
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Differential algebraic equation
In mathematics, differential algebraic equations (DAEs) are a general form of (systems of) differential equations for vector–valued functions x in one independent variable t,
is a vector of dependent variables
and the system has as many equations,
. They are distinct from ordinary differential equation (ODE) in that a DAE is not completely solvable for the derivatives of all components of the function x.
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Differential-algebraische Gleichung
In einer differential-algebraischen Gleichung (auch Algebro-Differentialgleichung oder Deskriptor-System) sind gewöhnliche Differentialgleichungen und algebraische (d. h. hier: ableitungsfreie) Nebenbedingungen gekoppelt und werden als eine Gleichung bzw. Gleichungssystem aufgefasst. In einigen Fällen ist diese Struktur schon in der Form des Gleichungssystems angelegt, z. B. in
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Differential algebraic equation
In matematica, le equazioni differenziali algebriche (in inglese differential algebraic equation o DAE, come verranno chiamate nel seguito) sono una forma generale di equazioni differenziali, nelle quali le derivate non sono espresse in forma esplicita, a differenza dei sistemi ODE. Tipicamente le derivate di alcune variabili dipendenti possono non apparire affatto nelle equazioni. La forma generale di un sistema DAE è data da:
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