Page 178 - Schaum's Outline of Differential Equations
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CHAP. 18] GRAPHICAL METHODS FOR SOLVING DIFFERENTIAL EQUATIONS 161
Fig. 18-4
Fig. 18-5
corresponding to c = 4, c = l , and c = 0, are graphed in Fig. 18-6. On the isocline corresponding to c = 4,
every line element beginning on the isocline will have a slope of four. On the isocline corresponding to c = 1, every
line element beginning on the isocline will have a slope of unity. On the isocline corresponding to c = 0, every
line element beginning on the isocline will have a slope of zero. Some of these line elements are also drawn in
Fig. 18-6.
