Lengkung

Dalam matematik, sebuah lengkung adalah suatu objek geometri yang merukanan satu-dimensi dan berterusan. Banyak lengkung khusus telah dipelajari dalam geometri, bermula daripada bulatan.

Sebuah parabola merupakan contoh sederhana dari suatu kurva.

Lengkung boleh naik dan turun. Boleh naik sahaja atau turun sahaja.

Rujukan

• A.S. Parkhomenko (2001), "Line (curve)", dalam Hazewinkel, Michiel (penyunting), Encyclopedia of Mathematics, Springer, ISBN 978-1-55608-010-4
• B.I. Golubov (2001), "Rectifiable curve", dalam Hazewinkel, Michiel (penyunting), Encyclopedia of Mathematics, Springer, ISBN 978-1-55608-010-4
• Euclid, commentary and trans. by T. L. Heath Elements Vol. 1 (1908 Cambridge) Google Books
• E. H. Lockwood A Book of Curves (1961 Cambridge)

Pautan luar

• Famous Curves Index, School of Mathematics and Statistics, University of St Andrews, Scotland
• Mathematical curves A collection of 874 two-dimensional mathematical curves
• Gallery of Space Curves Made from Circles, includes animations by Peter Moses
• Gallery of Bishop Curves and Other Spherical Curves, includes animations by Peter Moses
• YAN Kun. Research on adaptive connection equation in discontinuous area of data curve. doi:10.3969/j.issn.1004-2903.2011.01.018
• The Encyclopedia of Mathematics article on lines.
• The Manifold Atlas page on 1-manifolds.