To execute this section, open this help page as a worksheet and then execute the worksheet.
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$\mathrm{with}\left(\mathrm{DEtools}\right)\:$

Example of a single nonautonomous first order differential equation:
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$\mathrm{dfieldplot}\left(\mathrm{diff}\left(y\left(x\right)\,x\right)=\frac{1}{2}\left(x{\left({x}^{2}+4y\left(x\right)\right)}^{\frac{1}{2}}\right)\,y\left(x\right)\,x=3..3\,y=3..2\,\mathrm{title}=\mathrm{`Restricted\; domain`}\,\mathrm{color}=\frac{1}{2}\left(x\left({x}^{2}+4y\right)\right)\right)$

Example of a system of two autonomous first order differential equations. This is the command to create the plot from the Plotting Guide.
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$\mathrm{dfieldplot}\left(\left[\mathrm{diff}\left(x\left(t\right)\,t\right)=x\left(t\right)\left(1y\left(t\right)\right)\,\mathrm{diff}\left(y\left(t\right)\,t\right)=0.3y\left(t\right)\left(x\left(t\right)1\right)\right]\,\left[x\left(t\right)\,y\left(t\right)\right]\,t=2..2\,x=1..2\,y=1..2\,\mathrm{arrows}=\mathrm{SLIM}\,\mathrm{color}=\mathrm{black}\,\mathrm{dirfield}=\left[10\,10\right]\right)$
