HISTORY OF TRIG PROJECT 2015 by khazer javaid

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Ancient Babylon Contribution to Trigonometry

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Babylonians are known to have used triangles, and trigonometric functions, because they would keep detailed records of the rising and setting of the sun. They also divided the circle into 60 parts, and their numeral systems were based around the number 60. Some even think that the babylonians used a secant table, based on an interpretation of the Plimpton 322 cuneiform tablet, Circa 900 B.C

Egyptians also made important contributions to the development of trigonometry.

Ancient Egyptian Contribution To Trigonomtery

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Egyptians also made important contributions to the development of trigonometry. During the 2nd Millennium B.C, Egyptians used a more basic and primitive form of trig to build the famous pyramids, one of today's wonders of he world. Ahmes, the writer of "Rhind Mathematical Papyrus" and a scribe during 1680-1620 B.C, had made a problem that related to trig. EH also recorded other problems like the division of 2, and many problems that dealt with fractions.

Ahmes

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Greeks Contribution to Trigonomtery

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Greek Astronomers/ mathematicians such as Hipparchus, some say is the Father of Trigonometry, Thales of Miletus, Menelaus of Alexandria, and Ptomely contributed to trigonometry.

They would divide the circle into 360 degrees, and 60 arc minutes. They also used chords, which subtend the arc, and applied chords to their research.

Astronomy Fueled the DEveoplment of TRigonometry.

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Hipparchus of Nicaea

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180 B.C- 125 B.C

Chord

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Contributed the table of chords, which gave way to his contemporaries like Ptolemy, and the Indians to discover more about trig functions.

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Thales of Miletus

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624-546 BC

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Thales used basic tangent and co tangent functions to calculate the lengths of shadows, and the height of the pyramids.

Menelaus Of Alexandira

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70-100 AD

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Ptolemy

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90 AD - 168 Ad

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Came up with the equation that states that the sum of opposite sides of a quad is = to the product of the diagonals. His Sine discovery, were used and innovated by the Indians.

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Inidans Contribution To Trigonometry

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Indians contributed many important functions and theories in trigonometry that we use today. They strengthened, discovered, and innovated many of the sine functions. Key mathematicians from India are Aryabhata, Varahamihira, and Brahmagupta.

Pythagoras

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571 BC- 495 BC

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Aryabhata

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476-560

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Helped define sine, cosine, and versine. Also founded versine= 1 - cosine. And developed the table of sines.

Varahamihira

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505-587

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Improved the table of sines and developed many trig functions.

Brahmagupta

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598-670

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Muslims Contributions to Trigonometry

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Muslims really fueled the development of trigonometric functions. They discovered and produced detailed sine and cosine tables. And brought the first tangent and cotangent table, in the early 19th century. Key mathematicians were Muhammad ibn Musa Al-Khwarizma, Abu al Wafa al Bazjani Habash Al- Habib Al Marwazi, and Muhammad ibn Jabir Al Harrani Al Battani.

Muhammad ibn Musa Al-Khwarizm

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780-850

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Published the sine and cosine tables. He also innovated the spherical trigonometry

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Habash Al- Hasib Al Marwazi

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Abu Al- WAfa Al Bazjani

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Founded the formula

Muhammad Al-Harrini Al-Battani

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853-929

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He found the relationship between tan, sine , and cos.

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Europeans Contribution to Trigonometry

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This mathematicians from Germany, Austria,and Switzerland, also published calculated version of sine and cosine table. They also made contribution to spherical trig,and logarithmic function.

Georg Joachim Rheticus

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1514-1574

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He was the first in Europe to define trigonometric functions directly in terms of right triangles for all six trigonometric functions

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What Is Trigonometry?

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First of all, what is trigonometry? Well, it is known as the study of triangles, along with its angles and lengths. It is one of the most well-known branches of mathematics and dates way back to 3 B.C! Everything presented here will give you an insightful tour of the hisotry of trignometry and how it has become to what it is today.

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Khazer Javaid

Amad Aulakh

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