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Trigonometry

 Trigonometry (from Greek trigonon 'triangle' + metron 'measure' or from Sanskrit trikon 'triangle' + miti 'measurement' = trikonmiti) is a branch of mathematics that studies triangles and the relationships between their sides and the angles between the sides. Trigonometry defines the trigonometric functions, which describe those relationships and have applicability to cyclical phenomena, such as waves. The field evolved during the third century BC as a branch of geometry used extensively for astronomical studies.

Trigonometric identities : Trigonometric Identities

By: Sal Khan

Introduction to trigonometric identities

If you're starting to sense that there may be more to trig functions than meet the eye, you are sensing right. In this tutorial you'll discover exciting and beautiful and elegant and hilarious relationships between our favorite trig functions (and maybe a

A Drill-Book in Trigonometry

By: Jones, George William, 1837-1911; Oliver, James Edward, 1829-1895. Treatise on Trigonometry

United Brethren in Christ. General conference. Commission on revision of the Confession of Faith and amendment to Constitution of the church, 1885 ; United Brethren in Christ

Logarithmic and Trigonometric Tables : Five Place and Four Place

By: Phillips, Andrew Wheeler, 1844-1915; Phillips, Andrew Wheeler, 1844-1915. Elements of Trigonometry. 1899; Strong, Wendell M. (Wendell Melville), 1871-1942

Mémoire couronné par l'Académie Royale des Sciences, qui en avait mis le sujet au concours pour l'année 1818.

Plane Trigonometry, Mensuration, And Spherical Trigonometry

By: Twisden, John Francis, Sir 1825-1914

Trigonometry ; Mensuration

Plane trigonometry, mensuration, and spherical trigonometry

By: Twisden, John Francis, Sir 1825-1914

Supplemental catalog subcollection information: American Libraries Collection; American University Library Collection

Graphs of trig functions : Example: Graph of cosine

By: Sal Khan, Monterey Institute for Technology and Education

Basic interpretation of the graph of the cosine function

Videos and exercises on trigonometry. Watch the Geometry playlist first if you have trouble understanding the topics covered here.

Graphs of trig functions : Example: Amplitude and period cosine tr...

By: Sal Khan

Visualizing changes in amplitude and period for a cosine function

Videos and exercises on trigonometry. Watch the Geometry playlist first if you have trouble understanding the topics covered here.

Graphs of trig functions : Example: Intersection of sine and cosine

By: Sal Khan, Monterey Institute for Technology and Education

Thinking about where the graphs of sin and cos intersect.

Videos and exercises on trigonometry. Watch the Geometry playlist first if you have trouble understanding the topics covered here.

Intro to hyperbolic trigonometric functions : Hyperbolic Trig Func...

By: Sal Khan

Exploring a motivation for even defining hyperbolic sine and cosine

Motivation and understanding of hyperbolic trig functions.

The Cosine and Internet X.500 Schema

By: P. Barker

Technical Reference Publication

Introduction: Directory Services are a fundamental requirement of both human and computer communications' systems. Human users need to be able to look up various details about other people: for example, telephone numbers, facsimile numbers and paper mail addresses. Computing systems also need Directory Services for several purposes: for example, to support address look-ups for a variety of services, and to support user-friendly naming and distribution lists in electronic mail systems.

Graphs of trig functions : Graph of the sine function

By: Sal Khan

Using the unit circle definition of the sine function to make a graph of it.

Videos and exercises on trigonometry. Watch the Geometry playlist first if you have trouble understanding the topics covered here.

Graphs of trig functions : Example: Graph, domain, and range of si...

By: Sal Khan, Monterey Institute for Technology and Education

Graphing a sin curve to think about its domain and range.

Videos and exercises on trigonometry. Watch the Geometry playlist first if you have trouble understanding the topics covered here.

Intro to hyperbolic trigonometric functions : Hyperbolic Trig Func...

By: Sal Khan

Why they are called hyperbolic trigonometric functions

Motivation and understanding of hyperbolic trig functions.

Renaissance mnemonics, poststructuralism, and the rhetoric of hype...

By: Smyth, Richard Edward

Supplemental catalog subcollection information: American Libraries Collection; American University Library Collection; Historical Literature; Typescript; Thesis (Ph. D.)--University of Florida, 1994; Vita; Includes bibliographical references (leaves 224-237)

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