The greek astronomer hipparchus (active 162-126 bc) discovered the precession of the equinoxes, founded trigonometry, and compiled the first star catalog born at nicaea in bithynia, hipparchus studied astronomy, perhaps under theodosius, and made some of his early observations in his native city from at least 162. After hipparchus the next greek mathematician known to have made a contribution to trigonometry was menelaus we know very little about the life of menelaus ptolemy mentions that menelaus observed in rome in the year 98 ad (toomer) thus it is believed that he was born around 70 ad (history of mathematics. The three ratios of a modern trigonometric table, rounded to six decimal places, with auxiliary angle θ in degrees daniel mansfield, author provided this approach can be traced back to the greek astronomer and mathematician hipparchus of nicaea (who died after 127 bce) he is said to be the father of. If this is so, hipparchus was not only the founder of trigonometry but also the man who transformed greek astronomy from a purely theoretical into a practical nor does he seem to have contributed anything to mathematical geography, which emerges from infancy only with the work of marinus of tyre and ptolemy. Also in the list of his contributions are his books on optics and arithmetic, writings concerning geography and astrology and a treatise called 'on objects carried down the text of menelaus of alexandria from the first century indicates that hipparchus was familiar with spherical trigonometry and used it for calculating lunar. Great importance, hipparchus' work has not been well documented only one work of his has survived, namely commentary on aratus and eudoxus most of his discoveries have been made known to us only through ptolemy's almagest his contributions to the field of mathematics include producing a trigonometric table. Have you ever wondered how many astronomers were out there and also what they have contributed to this world well this astronomer i'm about to talk about, his name is hipparchus hipparchus is a greek astronomer, mathematician and geographer hipparchus brought 3 contributions models, another math formula,.

Hipparchus of nicaea (c 190 – c 120 bc) was a greek astronomer, geographer , and mathematician of the hellenistic period many credit him as the founder of trigonometry hipparchus was born in nicaea, bithynia (now iznik, turkey) and most likely died on the island of rhodes he flourished during 162 to 127 bc as a. All about hipparchus: father of trigonometry cr: my classmate caralos. One of his contributions appears to have been the incorporation of numerical data based on observations into the geometrical models developed to account for the astronomical motions gerald toomer has credited hipparchus with the founding of trigonometry hipparchus was very interested in observation his recorded.

Hipparchus hipparchus the intelligent and perspicacious hipparchus, ancient greek mythologist made many mathematical contributions throughout his lifetime he was the founder of trigonometry and the first to develop a reliable method to predict solar eclipses he possessed the first mathematical. Improvement of trigonometry until the time of hipparchus the earliest contributions to sine, cosine and tangent came during the alexandrian period ( 300bc and 30bc) hipparchus, a highly credited greek astronomer who came to be known as “the father of trigonometry,” had a great influence in the. Hipparchus is recogniaed as the first mathematician who compiled a trigonometry table, which he needed when computing the eccentricity of the orbits of the moon and sun he tabulated values for the chord function, which gives the length of the chord for each angle he did this for a circle with a circumference of 21,600.

Only one work by hipparchus has survived, and this is certainly not one of his major works most of the information which we have about the work of hipparchus comes from ptolemy even if he did not invent it, hipparchus is the first person whose systematic use of trigonometry we have documentary evidence hipparchus. Mathematicians who contributed in trigonometry ü hipparchus – created the science of trigonometry ü ptolemy – calculated the table of chords called the almagest ü hindus – made a table of half chords or sine ü al battani – calculated a table of cotangents ü arab – invented the tangent ü johannes miller. Hipparchus is recognised as the first mathematician to compile a trigonometry table, which he needed when computing the eccentricity of the orbits of the moon and sun he tabulated values for the chord function, which gives the length of the chord for each angle he did this for a circle with a circumference. During the hellenistic period, few greek astronomers were as distinguished and influential as hipparchus over the course of his life, hipparchus would be a very accomplished astronomer and mathematician he is believed to have been the founder of trigonometry and, although he made the discovery somewhat by.

He also made the earliest known calculations employing trigonometry, a branch of mathematics he may have created, leading some to call him the father of trigonometry the only extant work of hipparchus is his commentary on the phainomena of eudoxus and aratus, a discussion of an astronomical poem. Read this full essay on hipparchus, menelaus, ptolemy and greek trigonometry hipparchus of nicaea (c 190 – c 120 bc) was a greek 1581 words - 6 pages major greek contributions include astronomy, optics, and acoustics, along with major advances in mathematics science in ancient greece was based on logical. Hipparchus did not 'invent' 'trigonometry' (see part 1 pedagogical notes 1) the claim is made by many writers that hipparchus invented trigonometry, and the article on hipparchus on the mactutor website has various references about this ' event', for example: he made an early contribution to trigonometry producing a.

Learn more about the ancient greek astronomer and mathematician who was honored by having a space mission named for his contributions to science he made many advances in geography and mathematics, specifically in trigonometry, which he used to construct models to predict solar eclipses. Hipparchus was a greek astronomer and mathematician he is known for discovering the change in the orientation of the earth's axis and the axis of other planets with respect to the center of the sun he was also the inventor of trigonometry he had immense in geography and was one of the most famous.

The ancient greeks heavily contributed to trigonometry, with hipparchus, menelaus, and ptolemy each living after one another and building off the chord tables of their predecessors [3] originally, the side of a triangle in question would be called a chord because it intercepted the arc of its corresponding angle the greeks. Hipparchus was primarily an astronomer, but the beginnings of trigonometry apparently began with him certainly the babylonians, egyptians, and earlier greeks knew much astronomy before hipparchus, and they also determined the positions of many stars on the celestial sphere before him, but it is hipparchus to whom. Hipparchus measured the distance from the earth to the moon during a solar eclipse that was a total eclipse at syene and a partial eclipse at alexandria at the same time that an observer at syene saw the entire sun blocked by the moon , one at alexandria saw 1/5th of the sun's disk, that is 1/5th of 30 arcminutes of the.

Hipparchus contributions to trigonometry

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