||'''Book'''|| Linear Algebra ||
 ||'''Author'''|| Gilbert Strang ||
 ||'''Edition'''||  ||

/* code_begins */

{{{
# Sec. 3.2, Example 2

import numpy as np
a = matrix((1,1,1))
at = a.transpose()
num = np.dot(at, a)
den = np.dot(a, at)[0][0]
print num / float(den)
}}}

/* code_ends */

 * '''Solution by''':  
*<Dr. A. W. Pangantiwar>, <Associate Professor in Physics>, <Govt. College of Engineering, KARAD - 415124. Dist. Satara>