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I have some questions that have been bothering me for years now.

Why do we use differential equations? When would I normally think about using one? What would make me use one?

I know it means the slope of a function and I know the derivation/integration rules + the solution of some ODE's, but I'm missing something. I don't have a feeling for when to use it, and no professor managed to explain it nice. I would appreciate very much a good pedagogical answer.

Paul

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# Why differential equations? When to use them?

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