diff -r 000000000000 -r 0efde00f9229 chap2/mat_exp.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/chap2/mat_exp.py	Fri May 27 14:24:59 2011 +0530
@@ -0,0 +1,16 @@
+#!/usr/bin/python
+## 2.2
+
+import scipy as sp
+from scipy import linalg
+
+F=sp.array([[-1,0],[1,0]])
+print linalg.expm(F)
+
+# """
+# 1. linalg.expm computes the matrix exponential using Pade approximation.
+# 2. linalg.expm2 computes the matrix exponential using eigenvalue decomposition.
+# 3. linalg.expm3 computes the matrix exponential using Taylor series.
+# """
+
+