working on implementing the cubic interpolation. need to split that routine out of the run_baker method

bin/driver.py

@@ -103,4 +103,4 @@ if __name__ == '__main__':
     errors.append(cur_error)
 
   print rms(errors)
-  print "%s of %s won" % (success, len(mesh_dest.points))
+  print >>sys.stderr, "%s of %s won" % (success, len(mesh_dest.points))

bin/test.py

@@ -27,7 +27,7 @@ exact = exact_func_3D(X)
 print "exact solution: %0.6f" % exact
 
 phis = get_phis_3D(X, R.points)
-print "phi values (should all be positive): ", phis
+print "phi values (should all be positive): ", phis, sum(phis)
 if [i for i in phis if i < 0.0]:
   print "problems"
   sys.exit(1)