[Tutor] Maths: getting degrees from radians (or am I wrong?)

[Terry Carroll]

On Tue, 20 Sep 2005, R. Alan Monroe wrote:

> >  >>> math.degrees(_)  <--- in all my time on tutor
>                              I have never noticed
>                              this underscore trick
>                              before


That *is* cool.

I've usually done something like:

 >>> a+ 3*b +(5*ht/9) * 32
 9936254.2

Then use the up-arrow key to get

 >>> a+ 3*b +(5*ht/9) * 32

and edit it toL

 >>> x = a+ 3*b +(5*ht/9) * 32
 >>> foo(x)

The underscore's a nice stepsaver.  And limiting it to the interpreter 
avoids perlish abuse.