Hello, I ran the following code (Using Debian 5.0) from numpy import * a = arange(1.,10.) b = reshape(a, [3,3]) c = linalg.inv(b) print b print c print dot(b,c) print dot(c,b)
And the result is [[ 1. 2. 3.] [ 4. 5. 6.] [ 7. 8. 9.]] [[ 3.15221191e+15 -6.30442381e+15 3.15221191e+15] [ -6.30442381e+15 1.26088476e+16 -6.30442381e+15] [ 3.15221191e+15 -6.30442381e+15 3.15221191e+15]] [[-0.5 -1. -1. ] [-1. -2. 2. ] [-1.5 -3. 1. ]] [[ 5.5 8. 10.5] [ 3. 0. -3. ] [ -1. 0. -3. ]] NOT the identity matrix. Any help ? Thanks Ajith Kumar -- http://mail.python.org/mailman/listinfo/python-list
