To familiarize yourself with the divide and conquer technique, use the x,y
coordinates given in * mesh.pts* to generate a finite element mesh by
subdividing the region into square sections. These points are derived from
segmenting a transthoracic MRI scan for the epicardial and thorax
boundaries. Usually one creates a master block and then subdivides each
until a reasonable discretization level has been achieved (you might ask
yourself what * reasonable* means here). Once you have obtained the
subdivision into blocks, further subdivide the region into triangles (save
the quadrilateral connectivities for a later exercise). You can print out
the resulting mesh using the program * GridDraw* or view it using a
postscript viewer such as Ghostscript. Save the triangle connectivities
for later use with the finite element solver.