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Unformatted text preview: bp ) p } (with a = . 02 and b = . 000436). Appendix 2.2 Plotting direction felds or a single equation with Maple Figure 2.8 (p. 45) Given the differential equation dy dx = 2 x y the direction eld and isoclines can be obtained using Maple as follows: Step 1 Load the DEtools subroutine with the instruction with(DEtools): Note the colon after the instruction. Step 2 Dene the differential equation and a set of points for the isoclines. Eq:= diff(y(x),x)=2*xy Points:={[2,2],[1,1],[1,0.5],[0.5,2], [0,2],[0.5,1.5],[0.5,1],[1,1],[1.5,0.5]}; Step 3 Obtain the direction eld and the integral curves with the instruction DEplot(Eq,y(x),x=2. .2,Points,y=2. .2, arrows=slim, linecolour=blue);...
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This note was uploaded on 12/14/2011 for the course ECO 3023 taught by Professor Dr.gwartney during the Fall '11 term at FSU.
 Fall '11
 Dr.Gwartney
 Economics

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