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曲线及其相关表达式的图例

曲线及其相关表达式的图例

    
Wolfram Language code: styleoptions = Sequence@@{BaseStyle -> {GrayLevel[0.5], AbsoluteThickness[1.5]}, Filling -> Axis, FillingStyle -> {1 -> Opacity[0.6, Hue[0.63, 0.5, 0.7]], 2 -> Opacity[0.6, Hue[0.25, 1, 0.6]], 3 -> Opacity[0.6, Hue[0.11, 0.75, 0.9]]}, PlotStyle -> (Directive[AbsoluteThickness[5], #]& /@ {Hue[0.63, 0.5, 0.7], Hue[0.25, 1, 0.6], Hue[0.11, 0.75, 0.9]})};
Wolfram Language code: Plot[{Sin[x], Cos[x], Tan[x]}, {x, 0, 2π}, ImageSize -> 400, PlotLegends -> LineLegend["Expressions", LabelStyle -> {Gray, Bold, 18}], Evaluate@styleoptions]