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

/* code_begins */

{{{
F=matrix(RDF,[[1,0,0,0],[2,1,0,0],[0,0,1,0],[0,0,0,1]])
print "F"
print F
G=matrix(RDF,[[1,0,0,0],[0,1,0,0],[0,2,1,0],[0,0,0,1]])
print "G"
print G
H = matrix(RDF,[[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,2,1]])
print "H"
print H
print "F*G*H"
print F*G*H
print "H*G*F"
print H*G*F
}}}

/* code_ends */

 * '''Solution by''': 
   * D.V.L.Raghavendar,<student>,snist