Example program for dtgsja

This example finds the generalized singular value decomposition
A = UΣ1 0 R QT ,   B= VΣ2 0 R QT ,  
of the matrix pair A,B, where
A = 1 2 3 3 2 1 4 5 6 7 8 8   and   B= -2 -3 3 4 6 5 .