[PYTHON MATRIX-SIG] arange w/ fixed # of elements?

[David Ascher]

What is the recommended way to get an arange of a given # of elements 
between a min & and max?

If I do:
	step = (max - min) / float(number)
	r = arange(min, max, step)

then I am sometimes getting arrays w/ number + 1 elements, due to 
the odd case when max and min are exactly (or close enough) divisible
by the stepsize.

So, the following:

from Numeric import *

def test(s):
    x = 1.2*pi / s
    n = 300
    st = x / 300
    if len(arange(0,x,st)) == 301: print s

for x in arange(-5,5,.05):
    if x != 0:
	test(x)

shows that test(-0.8) and test(-1.6) on my machine yield arrays of size
301, while all the others yield arrays of size 300.

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