# x43.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 ( 1/3, 1/3, 1/3 ) but
# I haven't decide how that information is to be stored in the files.
#
4 columns
12 rows
3 subsystems
x43_01.txt