request for the soft key [copy]

[compsystems]

in many cases the parentheses are redundant as:

x^3+6 [enter] x^3+6
x[x^2] + Ans [enter] x^2+(x^3+6) == x^2+(x^3+6) == x^2+x^3+6 OK

but not in others.

current

factor(x^3-y^3) [enter] (x-y)*(x^2+x*y+y^2)

x-y [enter] x-y
x^2+x*y+y^2 [enter] x^2+x*y+y^2

[up][up] [copy] x-y [*] [up] [copy] x^2+x*y+y^2 [enter] -x^2*y+x*y+x+y^2 =(

nextfirmware

[up][up] [copy] (x-y) [*] [up] [copy] (x^2+x*y+y^2) [enter] x^3-y^3 OK