This directory contains two versions of a program that solves
a Laplace equation in two dimension (a temperature distribution
problem).  Numerically it is very naive, but it shows how
streams can be used in a typical array problem to avoid indexing.

The 'lap' program (produced by Makefile.lap) uses a stream of
matrixes and indexes many times in every iteration.

The 'slap' program (produced by Makefile) uses a matrix of
streams and only uses indexing in the initial setup of the matrix.

Both programs are should be started with
	
	lap n delta

and the iteration takes place in an n by n matrix (try 5) and
stops when the maximum difference between two iterations is
delta (try 1).

The programs also shows a generic Makefile that handles the problem
that make has with a program that sometimes produces two output files
(the .o and the .t).  The Makefile was concieved by Goeran Uddeborg.
