[pypy-commit] extradoc extradoc: add numpy example

[fijal]

Author: Maciej Fijalkowski <fijall at gmail.com>
Branch: extradoc
Changeset: r4108:a65e0376519b
Date: 2012-02-29 12:55 -0800
http://bitbucket.org/pypy/extradoc/changeset/a65e0376519b/

Log:	add numpy example

diff --git a/talk/pycon2012/tutorial/examples.rst b/talk/pycon2012/tutorial/examples.rst
--- a/talk/pycon2012/tutorial/examples.rst
+++ b/talk/pycon2012/tutorial/examples.rst
@@ -1,12 +1,20 @@
 
 * Refcount example, where it won't work
 
+  01_refcount
+
 * A simple speedup example and show performance
 
+  02_speedup
+
 * Show memory consumption how it grows for tight instances
 
+  03_memory
+
 * Some numpy example (?)
 
+  04_numpy
+
 * An example how to use execnet
 
 * An example how to use matplotlib
diff --git a/talk/pycon2012/tutorial/examples/04_numpy.py b/talk/pycon2012/tutorial/examples/04_numpy.py
new file mode 100644
--- /dev/null
+++ b/talk/pycon2012/tutorial/examples/04_numpy.py
@@ -0,0 +1,15 @@
+try:
+    import numpypy
+except ImportError:
+    pass
+import numpy
+
+def f():
+    a = numpy.zeros(10000, dtype=float)
+    b = numpy.zeros(10000, dtype=float)
+    c = numpy.zeros(10000, dtype=float)
+    (a + b)[0] = 3
+    (a + b * c)[0] = 3
+    (a + b * c).sum()
+
+f()