[Numpy]Can't make fromfunction() work

[Junkie Dolphin]

Hi, I'm trying this piece of code, but y returns as a
float. x and e are created regulary. 
I'm a beginner with this amazing language, and haven't 
read (all) the fucking manual yet (shame on me!).
If someone used with Numeric could give me an 
hint I would be very glad.. Thank you! =)

from Numeric import *;

G = 200.
N = 15.

def abscissa(i):
	return i/N
	
def ordinate(i):
	x = i/N
	if (0.<=x) & (x<0.3): return 0.	
	elif (0.3<=x) & (x<=0.35): return 20.*x-6.
	elif (0.35<x) & (x<0.65): return 1.
	elif (0.65<=x) & (x<=0.7): return 14.-20.*x
	elif (0.7<x) & (x<=1.): return 0.
	raise ArithmeticError("function is undefined for ",x)
	
def errors(i): 
	return i/G

# from command line (unix script style)
if __name__ == '__main__':
	x = fromfunction(abscissa,(16,))
	y = fromfunction(ordinate,(16,))
	e = fromfunction(errors,(16,))
	print type(y)

*****************
bash-2.05b$ python ex1.py
<type 'float'>
bash-2.05b$
-- 
Ciao, Giovanni aka Junkie Dolphin

Political language...is designed to make lies 
sound truthful and murder respectable, and to 
give an appearance of solidity to pure wind.

George Orwell