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This directory contains top-level routines to find the apparent horizon
and interface with the rest of Cactus.

The main source files in this directory are as follows:

AHFinderDirect.hh
	overall header file for routines in this directory

state.cc
	state information (data structures) kept across Cactus scheduler calls

setup.cc
	this is called from the scheduler to setup our data structures

initial_guess.cc
	this is called from the scheduler to set the initial guess(es) for
	the horizon position(s)

find_horizons.cc
	this is called from the scheduler to find the apparent horizon(s)
	in a slice

ellipsoid.maple
	this is a Maple script to compute the intersection of a given
	ray with an ellipsoid; this is used in setting up the initial guess
ellipsoid.c
	this is the Maple-generated code from "ellipsoid.maple"
ellipsoid.log
	this is the standard output from running "ellipsoid.maple"

Newton.cc
	this solves the H(h) = 0 equations by Newton's method

io.cc
	I/O routines