What is pie square

π²=9.8696044010893586

36.4621596072079

That was π^π.

Sorry, thejamesmachine........I don't think your answer is quite correct......this is pie square.........

I see what you did there...

I don't know what pie squared is, but I know that  pi is the proper subset of pie

                                          {pi} ⊂ {pie}

Did you bake that?