7.1: An Introduction to Differential Equations
https://math.libretexts.org/Bookshelves/Calculus/Book%3A_Active_Calculus_(Boelkins_et_al.)/07%3A_Differential_Equations/7.01%3A_An_Introduction_to_Differential_Equations
WebSep 29, 2023 · A differential equation is simply an equation that describes the derivative (s) of an unknown function. Physical principles, as well as some everyday situations, often describe how a quantity changes, which lead to differential equations.
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