Newbie questions

[Michael Hudson]

Alex <cut_me_out at hotmail.com> writes:

> > pi = 3.141592654
> > radius = input("Enter is the radius: ")
> > circ = 2 * pi * radius
> > print circ
> 
> Perhaps the third line should be 'circ = 2 * pi * float (radius)'
> 
> As it is, you are multiplying a float by a string, I think.  That should
> be giving you a type error.

No, he's used "input", which evaluates what you type (and hence the
usual security related hackles rise).
 
> By the way, you can get pi from the math module:
> import math
> print math.pi
> 
> It's good not to have constants encoded directly in to your program, in
> case they ever change. :)

That was the DEC Fortran manual, wasn't it?

faaar-to-young-to-have-seen-*that*-one-ly y'rs
Michael

-- 
  The ability to quote is a serviceable substitute for wit.
                                                -- W. Somerset Maugham