One-dimensional manifolds include lines and circles, but not figure eights (because they have crossing points that are not locally homeomorphic to Euclidean 1-space).
Manifold berdimensi-satu meliputi garis dan lingkaran, tetapi tidak termasuk angka delapan (karena mereka memiliki titik persimpangan yang secara lokal tidak homeomorfis ke ruang Euklides berdimensi-1).