
Click on the graph to see the FullRange Fourier series approximations to
if 2< x< 1 then f(x) = ((x+2)^2)1
else if 1< x < 1 then f(x) = x^2+1
else if 1 < x < 2 then f(x) = ((x2)^2) 1
In Mathematica code f[x_]:=If[x<0, ((x+1)^2)+1 , ((x+1)^2)1 ]
