Is there a way I can set a flag so sage's default output is numerical instead of symbolic? I'm looking to set a flag so I can do something like this:
sage: vector([cos(rd(40)),sin(rd(40))])*60
(60*cos(2/9*pi), 60*sin(2/9*pi))
sage: set numerical=true
sage: vector([cos(rd(40)),sin(rd(40))])*60
(45.9626665871387, 38.5672565811924)
I know that I can use n(generic_varible) or generic_variable.n() but when I'm doing my homework it's very time consuming, because it involves either a lot of switching or a lot of writing.
