xxxxxxxxxxvar('x'); t=15f=cos(x); g=sqrt(x)*sin(x); h=cos(sqrt(x)*sin(x))fun=[f,f.diff(),g,g.diff(),h,h.diff()]c=[colormaps.hsv(35*i)[:3] for i in [0..5]] l=[r'$f$',r'$f \prime$',r'$g$', r'$g \prime$',r'$h$',r'$h \prime$']p=plot(fun,(0,t),color=c,thickness=2,fill='axis', fillcolor=c,fillalpha=0.1,legend_label=l)p.show(figsize=(6,5),legend_fancybox=True, legend_loc=3,legend_font_size=16,gridlines=True)
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