Andreas Waldenburger wrote:
On Thu, 11 Dec 2008 05:40:45 +0000 Paul Rudin <[EMAIL PROTECTED]>
wrote:
"Dotan Cohen" <[EMAIL PROTECTED]> writes:
2008/12/10 <[EMAIL PROTECTED]>:
Ruby:
def norm a
s = Math.sqrt(a.map{|x|x*x}.inject{|x,y|x+y})
a.map{|x| x/s}
end
If someone doesn't counter with a Python one-liner then I'm going to
port that to brainfuck.
from numpy.linalg import norm
:)
This is one line of Python code alright, but it's not a "one-liner" in
the "computes the a normalized vector"-sense (which was the original
challenge, if there ever was one).
If anything, you are now ready to compute the *norm* of a vector in a
subseqent line. (Or, if you must, after a semicolon on the same line.)
Couldn't we assume that when you doing these kinds of math, there's always
import numpy
or
from numpy import *
is always at the start of the program, so it doesn't belong to the
functional code ?
And for those who use VPython (and thus needs " from visual import *" )
can simply do
a = norm ( v )
cheers,
Stef
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