Numerical Python (NumPy)

NumPy enables efficient numerical computing in Python
NumPy is a package of modules, which offers efficient arrays (contiguous storage) with associated array operations coded in C or Fortran
There are three implementations of Numerical Python

Numeric from the mid 90s (still widely used)
numarray from about 2000
numpy from 2006
We recommend to use numpy (by Travis Oliphant) 
from numpy import *

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