#  x45.txt
#
#  Reference:
#
#    Helmut Spaeth,
#    Mathematical Algorithms for Linear Regression,
#    Academic Press, 1991, page 190,
#    ISBN 0-12-656460-4.
#
#  Discussion:
#
#    This is simply a list of the total system size,
#    and the files that describe the subsystems.
#
#    In this case, the weights are ( 0.31915, 0.25532, 0.42553 ) but
#    I haven't decide how that information is to be stored in the files.
#
4 columns
12 rows
3 subsystems
x45_01.txt