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Sine, in mathematics, is a trigonometric function of an angle. The sine of an angle is defined in ... of complex sine. 12.2 Complex graphs. 13 History. 13.1 Etymology . 14 Software implementations; 1...

The birth of trigonometry - UALR


The complex origins of trigonometry are embedded in the history of the simple ... From India the sine function was introduced to the Arab world in the 8th century ...

calculus - Discovery of Sine and Cosine - History of Science and ...


Apr 10, 2015 ... Discovery of Sine and Cosine of an angle, the intuition behind it is ... The only trigonometric function was the chord c h d x = 2 sin ⁡ ( x / 2 ) .

History of Trigonometry Outline


The modern trigonometrical functions are sine, cosine, tangent, and their reciprocals, but in ancient Greek trigonometry, the chord, a more intuitive function , was ...

The Story Of Sine | My Dominant Hemisphere


Aug 27, 2009 ... I've been studying mathematics lately and really enjoying it. Here's an interesting story about the history of the trigonometric function, 'sine'.

Sines - Clark University


In the section on trigonometric functions, we'll define sines for arbitrary angles. A sine is ... This word history for sine is interesting because it follows the path of ...

History of Trigonometry - Part 3 : nrich.maths.org


The third of three articles on the History of Trigonometry. ... The versine function for a circle radius is: [See Note 3 below]. In Aryabhata's work, he uses and took ...

The Beginnings of Trigonometry


The sole trigonometric function used by the ancient Greeks is the chord, which is ... Thus it is believed that he was born around 70 AD (History of Mathematics).

History of Sine | Math, Trigonometry, Trigonometric Functions ...


History of Sine by Kerri Hallihan - May 15, 2013. ... Trigonometry · Trigonometric Functions · Precalculus. Like. 0 5:16. Switch to older version player ...

What Is Trigonometry? - Live Science


May 30, 2015 ... Trigonometry is a branch of mathematics that studies relationships between ... Sine, cosine and tangent are the principle trigonometric functions. ... Katz in “A History of Mathematics (3rd Edition)” (Pearson, 2008), trigonometry ...

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Trigonometric functions


Analysis index · History Topics Index ... The first work on trigonometric functions related to chords of a circle. Given a circle of fixed radius, ... Similarly, in terms of chords rather than sin and cos, Ptolemy knew the formulas. sin(x + y) = sinx cos y  ...

trigonometry | Britannica.com


Apr 18, 2016 ... ... to calculations. There are six functions of an angle commonly used in trigonometry.... ... History of trigonometry. Classical trigonometry.

Origin of the Terms Sine, Cosine, Tangent, etc. - Math Forum - Ask ...


Can you tell me the origin of the terms hypotenuse, sine, cosine, and tangent? Can you tell me how the trigonometric formulas for sine, cosine, ...