In[]:=
(*originalsyntax*)VectorPlot3D,,,{x,-10,10},{y,-10,10},{z,-10,10}
x
Sqrt[x^2+y^2+z^2]^3
y
Sqrt[x^2+y^2+z^2]^3
z
Sqrt[x^2+y^2+z^2]^3
Out[]=
In[]:=
(*sameplot,butaslightlybetterwaytowritetheinput(easiertoread)*)With{vec={x,y,z}},VectorPlot3D,{x,-10,10},{y,-10,10},{z,-10,10}
vec
Norm[vec]^3
Out[]=