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I need to plot a direction field and phase portrait of system of two first order differential equation using a computer (AKA program like Mathematica, Matlab, etc)

Does anyone know what kind of code I would need to use for this? We were told to come in with the direction fields and phase portraits, but we weren't told how to do it. :/

Thanks!

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    Where is your system of odes? – 2017-02-10
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    At least Matlab or Mathematica have special sections of Tutorial/Help to cover this topic. In Matlab this command is called `quiver`. – 2017-02-11

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