Plot3D[(((x^2)-(y^2))/((x^2)+(y^2))),{x,-2,2},{y,-2,2}]

Plot3D[(((x^2)y)/((x^2)+(y^2))),{x,-2,2},{y,-2,2}]

Plot3D[(((x^2)y)/((x^4)+(y^2))),{x,-.01,.01},{y,-.01,.01},PlotRange->{-.2,.2}]

Plot[{(E^(-(n+1) )),(1/((n+1)^2))},{n,0,100}]

Plot3D[(((Sqrt[1+(x^2) (y^2)])-1)/((x^2)+(y^2))),{x,-1,1},{y,-1,1}]

Plot3D[(((1+(x^2)+(y^2)))^(1/((x^2)+(y^2)))),{x,-1,1},{y,-1,1}]

Kuli róznych metrik.

RegionPlot[x^2+y^2<1,{x,-2,2},{y,-2,2}]

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RegionPlot[Abs[x]+Abs[y]<1,{x,-2,2},{y,-2,2}]

RegionPlot[Max[Abs[x],Abs[y]]<1,{x,-2,2},{y,-2,2}]