Matrix Forms as PlayGrounds

Manipulate[Style[MatrixForm[Array[Subscript[\[Alpha],##] &,
{N,N}]],{Medium,Bold,c}],
{N,Range[2,5,1]},{c,{Darker[Gray],Blue,Orange}}]
MatrixForm[Partition[Map[{{Subscript[#,11],
Subscript[#,12]},{Subscript[#,21],
Subscript[#,22]}}&,{A,B,C,D}],2]]
m=RandomInteger[{0,127},{4,5}]; mf=MatrixForm[m];
MatrixPlot[m,ColorFunction->"DeepSeaColors",
ImageSize->Small]
ScientificForm[MatrixForm[m/10.^5]]
{mf->BaseForm[mf,2]->PaddedForm[BaseForm[mf,2],
8,NumberPadding -> {"0", ""}]}