I was once using Mathematica 11 it all works fine - when I create new Notebook (.nb) input like 1+1
and press shift
+enter
, it shows output[1]:= 2
directly
But now for 12.1 when I create new notebook and do the same thing, it is treating my input 1+1
as plain text by default, when i press shift
+enter
there is just a linebreak.. no evaluation at all.
I find when I go to the menu -> cell -> cell properties and tick Evaluatable then the input can work well as Mathematica 11. BUT when i input Plot[x,{x,1,2}]
, it gives output -Graphics-
!! Without showing what the graphic is! I then have to manually convert the output cell to StandardForm to show the graph! I have to do such things everytime, why is 12.1 getting me so much ados ..and how can i remove such tedious things making it funcation just like what mathematica 11 does?
Pardon me I'm a complete nooooooob and really searched goooogle tons of times not getting the answer....