file	manifold.c
for	n-dimensional cylinder, sphere, ellipsoid, torus, and elliptical  torus
alg	recursive algorithm of n-dimensional sphere and torus
by	William L. Anderson

file	metric.c
for	Euclidean and hyperbolic metric on Riemannian manifold
by	William L. Anderson

file	geodes.c
for	minimum-length geodesic
alg	relaxation on d^2x^i/ds^2 + Gamma^i_{jk} dx^j/ds dx^k/ds = 0
by	William L. Anderson

file	geodtest.c
for	test driver for minimum-length geodesic
by	William L. Anderson