Уравнения с частными производными: Сборник заданий по курсу. Глушко В.П - 66 стр.

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graph2 = DisplayTogether@ImplicitPlot@tab21,
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PlotRegion Æ 880, 1<, 80.13, 1.00<<, AspectRatio Æ .75,
PlotStyle Æ 88Thickness@.0072D, GrayLevel@0.D<<D,
ImplicitPlot@tab22, 8x, -.5, .5<,
PlotRange Æ 88-0.5, 0.5<, 8-1.0, 1.0<<,
PlotRegion Æ 880, 1<, 80.13, 1.00<<,
AspectRatio Æ 0.75, PlotStyle Æ 88Thickness@.0066D,
GrayLevel@0.05D, Dashing@8.04, .03<D<<D,
DisplayFunction Æ IdentityD;
Show@Graphics@Text@"Рис.2 к задаче 2", 80, -1.17<D,
DefaultFont Æ 8"Courier NewêCyrilic-Bold", 10<D,
graph2, PlotRange Æ 88-0.5, 0.5<, 8-1.0, 1.0<<,
PlotRegion Æ 880, 1<, 80.12, 1.00<<, AspectRatio Æ .75,
Axes Æ True, DisplayFunction $DisplayFunctionD;
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Рис.2 к задаче 2
ClearAll@"a2", "b2", "c2", "d2", "e2", "x", "h", "v", "u2"D
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graph2 = DisplayTogether@ImplicitPlot@tab21,
        8x, -.5, .5<, PlotRange Æ 88-0.5, 0.5<, 8-1.0, 1.0<<,
        PlotRegion Æ 880, 1<, 80.13, 1.00<<, AspectRatio Æ .75,
        PlotStyle Æ [email protected], [email protected]<