Web Results

## Sine

en.wikipedia.org/wiki/Sine

In mathematics, the sine is a trigonometric function of an angle. The sine of an acute angle is ... 12.1.1 Partial fraction and product expansions of complex sine; 12.1.2 Usage of complex sine. 12.2...

## The birth of trigonometry

ualr.edu/lasmoller/trig.html

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 ...

## Trigonometric functions - MacTutor History of Mathematics

www-history.mcs.st-and.ac.uk/HistTopics/Trigonometric_functions.html

The first work on trigonometric functions related to chords of a circle. Given a ... Similarly, in terms of chords rather than sin and cos, Ptolemy knew the formulas.

## History of Trigonometry Outline

aleph0.clarku.edu/~djoyce/ma105/trighist.html

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

## The Beginnings of Trigonometry

www.math.rutgers.edu/~cherlin/History/Papers2000/hunt.html

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).

## The Story Of Sine | My Dominant Hemisphere

mydominanthemisphere.wordpress.com/2009/08/27/the-story-of-sine/

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'.

## What Is Trigonometry? - Live Science

www.livescience.com/51026-what-is-trigonometry.html

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 ...

Aug 15, 2011 ... http://BigBangPhysics.com The sine function can be obtained by taking ratios of triangle sides at different angles.
Aug 17, 2011 ... http://BigBangPhysics.com This tutorial presents a deeper understanding of where the sine function found its origins. The sine function came ...

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

nrich.maths.org/6908

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 ...

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

hsm.stackexchange.com

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 ) .

### trigonometry | Britannica.com

www.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 ...

mathforum.org

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, ...