Python Forum

Hi All,

My code is the following:

import numpy
import math
a = numpy.arange(1, 11)
b = numpy.arange(0, .02, .001)
v = []
for c in a:
    v.append([])
    for d in b:
         numpy.append(v[c],(1 / c ** 2) * math.exp( -c ** 2 * math.pi ** 2 * d))

I'm looking to create an a x b array composed of the following:

Output:
a[0]b[0]   a[0]b[1]   a[0]b[2]    etc.
a[1]b[0]   a[1]b[1]   a[1]b[2]    etc.
a[2]b[0]   a[2]b[1]   a[2]b[2]    etc.
etc.       etc.       etc.        etc.

How would I do this? As is my code is producing TypeError: list indices must be integers or slices, not numpy.float64.

Thanks,
Jonathan

I'd use a Pandas dataframe