Using an older version of Mathematica, I was used to the system automatically beginning each notebook line with
In:=. All I did was enter the expression and press enter on the keyboard to evaluate the expression. Now however, using the default Mathematica Input (v.9), there is no initial
In:=. I enter the expression and press enter, and then the
In:= appears, followed by the value of the expression or the symbolic output. I would prefer to have each new line begin with a numbered
I would like to know if it is possible to get back the old behavior that I was familiar with? If so, what preferences do I need to set?