--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/specs/data01.py	Fri May 27 14:24:59 2011 +0530
@@ -0,0 +1,26 @@
+#!/usr/bin/python
+# 7.9 
+import os, sys
+sys.path += [os.getcwdu() + os.sep + ".." + os.sep + "python"]
+
+import pylab as pl
+from left_prm import left_prm
+
+D = pl.array([[1, 0, 0, 0, 0, 0],
+              [0, 1, 0, 1, 0, 0],
+              [0, 0, 1, 1, 1, 0]])
+
+N = pl.array([[1, 0, 0],
+              [0, 1, 0],
+              [0, 0, 1]])
+
+dD, dN = 1, 0
+
+B, dB, A, dA = left_prm(N, dN, D, dD)
+
+print "A =", A
+print "dA =", dA
+
+print "B =", B
+print "dB =", dB
+