A First Course in Differential Equations pp 193-249 | Cite as

# Systems of Differential Equations

## Abstract

Up until now we have focused upon a single differential equation with one unknown state function. Yet, most physical systems require several state variables to characterize them. Therefore, we are naturally led to study several differential equations for several unknowns. Typically, we expect that if there are n unknown states, then there will be n differential equations, and each DE will contain many of the unknown state functions. Thus the equations are coupled together in the same way as simultaneous systems of algebraic equations. If there are n simultaneous differential equations in n unknowns, we call the set of equations an n-dimensional system.

## Keywords

Phase Plane Equilibrium Solution Erential Equation Computer Algebra System Solution Curve## Preview

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