Harmonic division — In geometry, harmonic division of a line segment AB means identifying two points C and D such that AB is divided internally and externally in the same ratio:frac{CA}{CB} = frac{DA}{DB}.In the example shown below, the ratio is two. Specifically,… … Wikipedia
Harmonic drive — A harmonic drive is an input/output gearing mechanism. It is typically used for gearing reduction, but may also be used to increase rotational speed or for differential gearing. Very high gear reduction ratios are possible in a small volume… … Wikipedia
harmonic — [hα: mɒnɪk] adjective 1》 relating to or characterized by harmony: a four chord harmonic sequence. 2》 Music relating to or denoting a harmonic or harmonics. 3》 Mathematics relating to a harmonic progression. ↘Physics of or denoting components… … English new terms dictionary
Harmonic progression — Progression Pro*gres sion, n. [L. progressio: cf. F. progression.] [1913 Webster] 1. The act of moving forward; a proceeding in a course; motion onward. [1913 Webster] 2. Course; passage; lapse or process of time. [1913 Webster] I hope, in a… … The Collaborative International Dictionary of English
harmonic construction — ▪ mathematics in projective geometry, determination of a pair of points C and D that divides a line segment AB harmonically (see Figure >), that is, internally and externally in the same ratio, the internal ratio CA/CB being equal to the… … Universalium
division — Synonyms and related words: Australian ballot, Hare system, Jim Crow, KP, Naval Construction Battalion, RN, Royal Navy, Seabees, USN, United States Navy, aberration, abstraction, addition, adjunct, affiliate, affiliation, age group, agreement to… … Moby Thesaurus
Nombre en division harmonique — Nombre à moyenne harmonique entière Un nombre à moyenne harmonique entière est un nombre entier positif dont la moyenne harmonique des diviseurs est un entier. Autrement dit, si a1, a2, ..., an sont les diviseurs du nombre, doit être un entier.… … Wikipédia en Français
Frequency-division multiplexing — (FDM) is a form of signal multiplexing where multiple baseband signals are modulated on different frequency carrier waves and added together to create a composite signal. Non telephoneFDM can also be used to combine multiple signals before final… … Wikipedia
List of mathematics articles (H) — NOTOC H H cobordism H derivative H index H infinity methods in control theory H relation H space H theorem H tree Haag s theorem Haagerup property Haaland equation Haar measure Haar wavelet Haboush s theorem Hackenbush Hadamard code Hadamard… … Wikipedia
Military Academy Cadet Chapel (West Point) — Military Academy Cadet Chapel in West Point (New York) Die Military Academy Cadet Chapel in West Point (New York) ist ein protestantisches Kirchengebäude für die United States Military Academy. Sie beinhaltet die größte Orgel der Welt in einem… … Deutsch Wikipedia