Moved numexpr minimal file into numexpr folder

Author: Jonathan Rocher

numexpr/numexpr_minimal.py

@@ -0,0 +1,20 @@
+""" Getting started with numexpression 
+"""
+
+import numpy as np
+from numexpr import evaluate
+
+N = 8
+a = np.arange(10**N)
+b = np.arange(10**N)
+# Numpy version
+c1 = 2*a**3+b**2+16
+# Numexpr version
+c2 = evaluate("2*a**3+b**2+16")
+
+# Exploring the other available operators
+a = np.random.random((1000,1000))
+d = evaluate("sum(a, axis=0)")
+print "The sum of all elements:", d
+e = evaluate("log(a)")
+print "The log of all elements:", e