# Melvil Decimal System: 514.2

## Dewmoji: π¬ > β > π© > ?

 0Information115,954βΉοΈ 1Philosophy and Psychology115,844π­ 2Religion 351,090ππ½ 3Social Sciences 554,451π« 4Language75,777π¬ 5Mathematics and Science181,736π¬ 6Technology414,821π‘ 7Arts and Recreation444,897π¨ 8Literature605,140π 9Biography and History396,598πΏ 50General Science17,000π¬ 51Mathematics32,369β 52Astronomy10,717π 53Physics16,578π 54Chemistry9,875β 55Earth sciences & geology15,630π 56Fossils & prehistoric life4,102π 57Life Sciences24,338π 58Botany11,208πΏ 59Zoology39,919πΌ 510General Mathematics7,448β 511General Principles3,192π 512Algebra4,625+ 513Arithmetic2,605π’ 514Trigonometry; topology 755π© 515Analysis4,471Ξ£ 516Algebraic geometry2,551V 517Calculus704β« 518Numerical analysis225π» 519Applied Mathematics, Probabilities5,793π 514.0Trigonometry9 514.1Trigonometric functions; General formulas (See 522.7)3 514.2Trigonometric series210 514.3Exponential formulas95 514.4Solution of trigonometric equations1 514.5Plane geometry: solution of plane triangles; analytic20 514.6Spheric trigonometry; General formulas2 514.7Solution of spheric triangles203 514.8Differences of triangles, plane and spheric1 514.9Problems1 514.20 514.21 514.2278 514.2338 514.2433 514.25 514.26 514.27 514.28 514.29

1922 Edition
Modern language
Emoji

## "Far Friends"

MDS classes with significant recommendations overlap, excluding ones under the same top-level class.

None

## Related tags

1 (4) 4 (3) 15 (4) algebra (33) algebraic (10) book (4) Box 1 (4) Box 9 (4) E (5) ebook (6) English (5) General (4) geometry (32) GTM (5) homology (6) homotopy (4) knot theory (52) knots (35) manifolds (4) math (443) non-fiction (99) own (10) physics (8) probability (5) read (7) reference (7) RF (4) science (24) statistics (4) textbook (33) topology (205) unread (4) unsortedISBN (3)

## What is MDS?

Melvil stands for "Melvil Decimal System," named after Melvil Dewey, the famous librarian. Melvil Dewey invented his Dewey Decimal System in 1876, and early versions of his system are in the public domain.

More recent editions of his system are in copyright, and the name "Dewey," "Dewey Decimal," "Dewey Decimal Classification" and "DDC" are registered trademarked by OCLC, who publish periodic revisions.

LibraryThing's MDS system is based on the classification work of libraries around the world, whose assignments are not copyrightable. MDS "scheduldes" (the words that describe the numbers) are user-added, and based on public domain editions of the system.

The Melvil Decimal System is NOT the Dewey Decimal System of today. Wordings, which are entered by members, can only come from public domain sources. The base system is the Free Decimal System, a public domain classification created by John Mark Ockerbloom. Where useful or necessary, wording comes from the 1922 edition of the Dewey Decimal System. Language and concepts may be changed to fit modern tastes, or to better describe books cataloged. Wordings may not come from in-copyright sources.

You are using the new servers! | About | Privacy/Terms | Help/FAQs | Blog | Store | APIs | TinyCat | Legacy Libraries | Early Reviewers | Common Knowledge | 117,059,500 books! | Top bar: Always visible