Unformatted text preview: isoclines . Isoclines and direction Felds Given dy dx = ax − by then for every ( x , y )combination this equation speciFes the slope at that point. A plot of all such slopes gives the direction Feld for the differential equation, and gives the ‘ﬂow of solutions’. (The slopes at given points can be considered as small lines, like iron Flings, and if many of these are drawn the direction Feld is revealed – just like iron Flings reveal magnetic forces.) However, it is...
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 Fall '11
 Dr.Gwartney
 Economics, Derivative, Slope, Economic Dynamics, ax − bf

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