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1 Spherical trigonometry - Wikipedia
https://en.wikipedia.org/wiki/Spherical_trigonometry
The subject came to fruition in Early Modern times with important developments by John Napier, Delambre and others, and attained an essentially complete form by ...
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2 The Beginnings of Trigonometry
https://sites.math.rutgers.edu/~cherlin/History/Papers2000/hunt.html
As we have seen, the beginnings of trigonometry can be traced far back into history. Hipparchus, in the middle of the first century BC, was the first person ...
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3 Menelaus of Alexandria | Greek mathematician | Britannica
https://www.britannica.com/biography/Menelaus-of-Alexandria
Menelaus of Alexandria, (flourished 1st century ad, Alexandria and Rome), Greek mathematician and astronomer who first conceived and defined a spherical ...
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4 Trigonometric functions - MacTutor History of Mathematics
https://mathshistory.st-andrews.ac.uk/HistTopics/Trigonometric_functions/
This makes Hipparchus the founder of trigonometry. The next Greek mathematician to produce a table of chords was Menelaus in about 100 AD. Menelaus worked in ...
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5 History of Trigonometry Outline
http://aleph0.clarku.edu/~djoyce/ma105/trighist.html
The prime application of trigonometry in past cultures, not just ancient Greek, is to astronomy. Computation of angles in the celestial sphere requires a ...
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6 Trigonometry - New World Encyclopedia
https://www.newworldencyclopedia.org/entry/trigonometry
The first recorded use of trigonometry came from the Hellenistic mathematician Hipparchus c. 150 B.C.E., who compiled a trigonometric table using the sine for ...
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7 The Development of Trigonometry - Encyclopedia.com
https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/development-trigonometry
The subject of trigonometry proper originated with the astronomer Hipparchus of Bithynia (190-120 b.c.) To begin with, Hipparchus introduced the Babylonian ...
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8 Spherical Trigonometry Through the Ages - Ncl
https://www.mas.ncl.ac.uk/library/display_pdf.php?id=309
The invention of the logarithm as well as the derivation of the spherical law of cosines left users of spherical trigonometry with a.
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9 Who invented trigonometry - Byju's
https://byjus.com/jee-questions/who-invented-trigonometry/
Trigonometry is discovered by an ancient greek mathematician Hipparchus in the 2^ndcentury BC.The three most important mathematicians involved in devising ...
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10 Napier's mnemonic for spherical trigonometry
https://www.johndcook.com/blog/2012/12/23/napiers-mnemonic/
John Napier (1550–1617) discovered a way to reduce 10 equations in spherical trig down to 2 equations and to make them easier to remember.
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11 Who is called the father of trigonometry? - Quora
https://www.quora.com/Who-is-called-the-father-of-trigonometry
The Ancient Babylonians knew about a form of trigonometry and they discovered their own unique form of trigonometry during the Old Babylonian period (1900- ...
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12 Trigonometry - McGill School Of Computer Science
https://www.cs.mcgill.ca/~rwest/wikispeedia/wpcd/wp/t/Trigonometry.htm
The first recorded use of trigonometry came from the Hellenistic mathematician Hipparchus circa 150 BC, who compiled a trigonometric table using the sine for ...
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13 and 18th-century China, and its relation to “Western learning”
https://www.sciencedirect.com/science/article/pii/S0315086009000329
Many historians of mathematics contend that trigonometry was introduced to China by the Jesuits in the 17th century as part of calendar reform efforts.
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14 Beginnings of Trigonometry
https://www.austincc.edu/pmwright/BeginningsofTrigonometry.pdf
Trigonometry is an area of mathematics used for determining geometric quantities. ... known as Menelaus's theorem for solving spherical triangles, as well, ...
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15 Spherical Trigonometry and Navigation
https://www.math.stonybrook.edu/~tony/archive/hon101s08/spher-trig.html
1. Spherical Trigonometry deals with spherical triangles. On a sphere, the role of straight lines is played by great circles. Each of these is the intersection ...
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16 Trigonometry for the heavens - Physics Today - Scitation
https://physicstoday.scitation.org/doi/full/10.1063/PT.3.3798?utm_source=Physics+Today&utm_medium=email&utm_campaign=8943357_NQ+-+December+2017+TOC&dm_i=1Y69%2C5BOQL%2CE1NJXI%2CKK14K%2C1
Scholars do not agree who invented spherical trigonometry. It might have been Hipparchus himself, who is credited with inventing planar trigonometry.
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17 Infinite Secrets | Library Resource Kit | Famous Mathematicians
https://www.pbs.org/wgbh/nova/archimedes/lrk_famous.html
... and spherical trigonometry, algebra, and the mathematics of planetary motion. ... principles of what is now calculus centuries before it was invented.
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18 History of Trigonometry timeline - Timetoast
https://www.timetoast.com/timelines/history-of-trigonometry-1265265e-3ed1-4790-8b07-490eb4a1b0eb
Right Triangle Trigonometry is Invented ... After trigonometry finally makes its way to Western Europe, Georg Joachim Rheticus, a student of Copernicus, is the ...
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19 History of Trigonometry - Part 3 - NRICH
https://nrich.maths.org/6908
The introduction and development of trigonometry into an independent science in the Arab civilisation took, in all, some 400 years. In the early 770s Indian ...
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20 OHMS or everything you wanted to know about the history of ...
https://thonyc.wordpress.com/2021/12/08/ohms-or-everything-you-wanted-to-know-about-the-history-of-trigonometry-and-didnt-know-who-to-ask/
It was Islamic mathematicians, who developed the plane trigonometry that we know today rather than the spherical trigonometry.
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21 Trigonometry History - 1789 Words - Cram.com
https://www.cram.com/essay/Trigonometry-History/FKTMJU9UR445
This book contains information about the development of trigonometry and spherical trigonometry. In the first book of Sphaerica, Menelaus describes a ...
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22 Why Was Trigonometry Invented? | Origin And History Of ...
https://www.youtube.com/watch?v=16kd34v8vI0
May 3, 2019
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23 Meaning of spherical trigonometry in the Great Soviet Encyclopedia ...
https://kerchtt.ru/en/znachenie-sfericheskaya-trigonometriya-v-bolshoi-sovetskoi-enciklopedii-bse/
Spherical trigonometry. mathematical discipline that studies the relationships between angles and sides of spherical triangles (see Spherical geometry).
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24 The Forgotten Art of Spherical Trigonometry on JSTOR
https://www.jstor.org/stable/j.ctt1r2fvb
This is one reason why armillary spheres (plate 3, figure 2.1), movable models of the celestial sphere with various signposts labeled, were invented by the ...
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25 spherical trigonometry : definition of spherical trigonometry and ...
http://dictionary.sensagent.com/spherical%20trigonometry/en-en/
In the 10th century, another Persian Mathematician Abū al-Wafā' al-Būzjānī established the angle addition formulas, e.g., sin(a + b), and discovered the sine ...
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26 Sine, Cosine and the Measurement of the Earth
https://muslimheritage.com/sine-cosine-measurement-earth/
As well as Al-Battani, Abu al-Wafa, Ibn Yunus and Ibn al-Haytham all developed spherical trigonometry and applied it to the solution of ...
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27 The Islamic Roots of Trigonometry - Muslim Memo
https://muslimmemo.com/islamic-roots-trigonometry/
Like al-Battani, Ibn Yunus, and Ibn al-Haytham developed spherical trigonometry and used its laws to solve problems in astronomy. Al-Battani was ...
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28 Trig Laws of Sines and Cosines - Yoshiwara Books
https://yoshiwarabooks.org/trig/chap3.html
To find angles and distances on this imaginary sphere, astronomers invented techniques that are now part of spherical trigonometry . The laws of sines and ...
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29 Model of Oblique Spherical Triangle on the Earth's Surface
https://www.maa.org/press/periodicals/convergence/mathematical-treasure-model-of-oblique-spherical-triangle-on-the-earth-s-surface
Harry Wheeler (1873–1950), who made hundreds of models of polyhedra and other mathematical surfaces, made models for spherical trigonometry that can be dated ...
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30 Why did we invent trigonometry? What was the use of ... - Reddit
https://www.reddit.com/r/math/comments/8d7a7u/why_did_we_invent_trigonometry_what_was_the_use/
Trigonometry was invented for astronomy, and originally all trigonometry was spherical trigonometry. [Hence 360° in a circle – a nice round ...
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31 On the works of Euler and his followers on spherical geometry
https://hal.archives-ouvertes.fr/hal-01064269/document
Keywords: spherical trigonometry, spherical geometry, Euler, Lexell the- ... that we review here is the introduction of the newly discovered ...
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32 History of trigonometry | Math Wiki - Fandom
https://math.fandom.com/wiki/History_of_trigonometry
› wiki › History_of_trigonom...
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33 58746138-Mathematicians-Who-Contributed-in-Trigonometry ...
https://www.coursehero.com/file/45793699/58746138-Mathematicians-Who-Contributed-in-Trigonometrydoc/
To do this,heextended the work of Hipparchus on trigonometryandthe work of Menelaus on sphericaltrigonometrywhich he applied to solve the spherical triangles ...
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34 Use trigonometry in a sentence - RhymeZone
https://www.rhymezone.com/r/rhyme.cgi?typeofrhyme=wke&loc=thesql&Word=trigonometry
Napier was interested in facilitating calculations in spherical trigonometry that were being made on behalf of astronomical problems.
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35 History Timeline | Preceden
https://www.preceden.com/timelines/842643-history-timeline
He was a Persian mathematician who also discovered spherical trigonometry. Regiomontanus. 8 June 1436 AD - 6 July 1476 AD. % complete.
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36 Plane and spherical trigonometry, by Leonard M. Passano.
https://quod.lib.umich.edu/u/umhistmath/ABN7327.0001.001?rgn=main;view=fulltext
› ABN7327.0001.001
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37 Who Invented Trigonometry? - History Forum - All Empires
http://www.allempires.com/allempires.com-redirect/forum/forum_posts.asp?TID=10496
Greeks claim the word trigonometry comes from the ancient greek word trigonon (3 angles). Indians claim the word came from a word in ...
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38 Muslims and Maths - Islam Awareness Homepage
https://www.islamawareness.net/Maths/maths.html
I am sorry to say, but that is not true! The foundation of spherical trigonometry was laid by the Greek Hipparchus, who needed spherical trigonometry to study ...
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39 Father of Trigonometry Who is Not Just a Mathematician
https://www.linkedin.com/pulse/father-trigonometry-who-just-mathematician-sunila-jha
He was the first who wrote the trigonometric tables, and many of spherical trigonometry problems were solved by him. He invented the ...
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40 SPHERICAL GEOMETRY: A FEW MARKERS Menelaus ...
https://www.degruyter.com/document/doi/10.1515/9783110571424-013/pdf
Figure Theorem, was discovered and extensively used in all the astronomi- ... inaugurated the introduction of spherical trigonometry as an essential chap-.
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41 Introduction | SpringerLink
https://link.springer.com/chapter/10.1007/978-3-319-10870-4_1
The word 'mathematics' was coined by Pythagoras, who flourished around 500 bc. It meant 'a subject of instruction,' and its first part, ...
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42 Topics: Trigonometry - Ole Miss Physics
http://www.phy.olemiss.edu/~luca/Topics/math/trig.html
* History: Scholars do not agree who invented spherical trigonometry; It might have been Hipparchos himself, or possibly Menelaus two centuries later, or even ...
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43 6 The Modern Approach: Oblique Triangles
https://princeton.universitypressscholarship.com/view/10.23943/princeton/9780691175997.001.0001/upso-9780691175997-chapter-006
Heavenly Mathematics: The Forgotten Art of Spherical Trigonometry ... in his possession, more than a century before Hipparchus invented trigonometry!
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44 Spherical Geometry: Exploring the World with Math
https://personal.math.ubc.ca/~cass/courses/m308-02b/projects/franco/index.htm
However, during the days of exploration, when it was discovered that the world was indeed round and not flat, spherical geometry was integral in mapping out ...
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45 Trigonometry.pdf - Adelphi University
https://home.adelphi.edu/~bradley/Modules/Trigonometry.pdf
The final lesson, on spherical trigonometry, is extensive because high school texts ... In the eighth century, the Arabs discovered Hindu trigonometry.
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46 Who is the founder of trigonometry? - GeeksforGeeks
https://www.geeksforgeeks.org/who-is-the-founder-of-trigonometry/
Solution: The first trigonometric table was apparently formed by Hipparchus, who is consequently now known as “the father of trigonometry”.
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47 In the early 9th century AD, produced accurate sine and ...
https://www.toppr.com/ask/en-us/question/in-the-early-9th-century-ad-produced-accurate-sine-and-cosine-tables-and-the/
› ask › en-us › question
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48 Can Maths Tell Us Where We Are? - Gresham College
https://www.gresham.ac.uk/sites/default/files/2019-01-08_ChrisBudd_CanMathsTellUsWhereWeAre-T.pdf
mathematics itself (such as the theory of spherical trigonometry), but also in the ... It is worth saying that by inventing the Chronometer, ...
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49 Plane and Spherical Trigonometry (College Outline Series)
https://www.amazon.com/Plane-Spherical-Trigonometry-College-Outline/dp/0064600459
Buy Plane and Spherical Trigonometry (College Outline Series) on Amazon.com ✓ FREE SHIPPING on qualified orders.
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50 Spherical Trigonometry - KryssTal
http://www.krysstal.com/sphertrig.html
Spherical Trigonometry deals with triangles drawn on a sphere. The subject originated in the Islamic Caliphates of the Middle East, North Africa and Spain ...
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51 Aubrey Diller and Hipparchos' Klimata. Does Spherical ...
https://ui.adsabs.harvard.edu/abs/2009DIO....16...18R/abstract
Pliny's seven "circuli" are reconstructed and found to be a clever semi-trigonometric approximation, shown by graph to closely track the spherical trigonometric ...
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52 Trigonometric - Learning center
https://www.jazufree.com.ng/2022/08/trigonometry-read-brief-summary-of-this.html
Until the 16th century it was chiefly spherical trigonometry that interested scholars—a consequence of the predominance of astronomy among the ...
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53 Greatest Mathematicians born between 400 and 1559 A.D.
https://fabpedigree.com/james/grmatm2.htm
No one person gets unique credit for the invention of the decimal system but ... He worked in plane and spherical trigonometry, and with cubic equations.
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54 Trigonometry: Development In Ancient Civilization - IPL.org
https://www.ipl.org/essay/Essay-On-Trigonometry-PJZATC946U
Although Greek and Babylonian mathematician laid the foundation of spherical trigonometry by discovering relations between spherical triangles and ...
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55 and 18th-century China, and its relation to “Western - CORE
https://core.ac.uk/download/pdf/82032419.pdf
Spherical trigonometry as the computational basis for astronomy is built ... ficulties: First, Dai adopted ancient terms or invented new yet ...
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56 The Importance of Spherical Trigonometry Today - Medium
https://medium.com/the-dock-on-the-bay/the-importance-of-spherical-trigonometry-today-d744cbbb229f
Time to dust off my sextant and spherical trigonometry. ... it also depends on an accurate timepiece, which is why Harrison invented the marine chronometer.
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57 Discovery of Sine and Cosine
https://hsm.stackexchange.com/questions/2148/discovery-of-sine-and-cosine
His trigonometric tables, if he made them, did not survive, and the earliest existing work where trigonometry is fully developed is Ptolemy's ...
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58 trigonometry - The Worlds of David Darling
https://www.daviddarling.info/encyclopedia/T/trigonometry.html
Trigonometry began as the study of geometrical angles and the information that we may infer from them. As it developed, it became essential in astronomy, land ...
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59 history of trigonometry - SlideShare
https://www.slideshare.net/snehacatherinejoy/history-of-trigonometry-44916354
Trigonometry in the modern sense began with the Greeks. ... Hipparchus (c. ... He considered every triangle—planar or spherical—as being inscribed ...
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60 Islamic - The Story of Mathematics
https://www.storyofmathematics.com/islamic.html/
The 13th Century Persian astronomer, scientist and mathematician Nasir Al-Din Al-Tusi was perhaps the first to treat trigonometry as a separate mathematical ...
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61 Difference Between Trigonometry and Geometry - Vedantu
https://www.vedantu.com/maths/difference-between-trigonometry-and-geometry
The Greek words "trigonon" and "metron" when clubbed together form the term “Trigonometry”. Hipparchus, a Greek mathematician invented trigonometry. Is this ...
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62 History of trigonometry. Trigonometry in nature
https://ezoteriker.ru/en/istoriya-vozniknoveniya-trigonometrii-trigonometriya-v-prirode/
He proved the tangent theorem. Regiomontanus also compiled detailed trigonometric tables; Thanks to his work, plane and spherical trigonometry became an ...
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63 Maurolico, Rheticus, and the Birth of the Secant Function
https://journals.sagepub.com/doi/full/10.1177/00218286211013202
Trigonometry began in ancient Greece as a means of converting geometric models of the motions of celestial bodies into quantitative predictions ...
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64 Fact Checking Muslim Science - Facebook
https://www.facebook.com/factcheckingmuslimscience/posts/copying-and-adding-to-greek-mathematicsthe-image-is-of-the-pythagorean-theoremco/1564284816928707/
Spherical trigonometry was studied by early Greek mathematicians such as Theodosius of Bithynia, a Greek astronomer and mathematician who wrote the Sphaerics, a ...
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65 Girard's Spherical Excess Formula -- from Wolfram MathWorld
https://mathworld.wolfram.com/GirardsSphericalExcessFormula.html
Coxeter, H. S. M. Introduction to Geometry, 2nd ed. New York: Wiley, pp. 94-95, 1969. Girard, A. Invention nouvelle en algebra ...
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66 ToK maths | IB Maths Resources from Intermathematics | Page 2
https://ibmathsresources.com/category/tok-maths/page/2/
One of the fundamental formula for spherical trigonometry, ... false – and along the way they discovered a whole new branch of mathematics.
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67 Spherical Geometry
http://jwilson.coe.uga.edu/EMAT6680Fa11/Frailey/SphericalGeometryEssay.htm
At the time when Earth was discovered to be round rather than flat, spherical geometry began to emerge to aid navigators in mapping the land and water.
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68 The Three Geometries - EscherMath - SLU Math
https://mathstat.slu.edu/escher/index.php/The_Three_Geometries
The Greeks already studied spherical trigonometry. Hipparchus (190 BC-120 BC) was a Greek astronemer. hipparchus was known for his work in ...
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69 Spherical trigonometry definition and meaning
https://www.collinsdictionary.com/dictionary/english/spherical-trigonometry
He invented the sciences of plane and spherical trigonometry, and was the first to use right ascensions and declinations. Thomas N. Orchard The Astronomy of ...
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70 The Spherical Law of Cosines - Theorem of the Day
https://www.theoremoftheday.org/GeometryAndTrigonometry/SphericalCos/TotDSphericalCos.pdf
The Spherical Law of Cosines Suppose that a spherical triangle on the unit sphere has ... The Forgotten Art of Spherical Trigonometry by Glen Van Brummelen,.
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71 Spheres and more | Trigonometry: A Very Short Introduction
https://academic.oup.com/book/28465/chapter/229085057
Spherical trigonometry was intended originally for astronomers, but medieval Islamic scholars used it to predict the beginning of the sacred month of ...
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72 Anamika on Twitter: "Islamic Astronomers invented Spherical ...
https://twitter.com/anamyid/status/862545037363630080
Islamic Astronomers invented Spherical Trigonometry. Most of the star names in Western Astrology are Arabic origin. Only a few are Greek. 5:48 AM · May 11, ...
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73 PLANE AND SPHERICAL TRIGONOMETRY - Free
http://tomlr.free.fr/Math%E9matiques/Math%20Complete/Geometry/Trigonometry/Plane%20and%20Spherical%20Trigonometry%20-%20C.%20Palmer,%20C.%20Leigh.pdf
Plane and Spherical Trigonometry with Tables ... (5) Trigonometric equations are introduced early and used ... tions were invented in the sixteenth century.
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74 plane and spherical - trigonometry - Central Library
https://www.dbraulibrary.org.in/RareBooks/Mathematics_1951_54967_Plane%20and%20spherical%20trigonometry.pdf
of spherical trigonometry and its applications before the mind is engrossed with long computations. ... John Napier (1550-1617) invented logarithms.
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75 Who is the father of trigonometry? - Interview Area
https://www.interviewarea.com/frequently-asked-questions/who-is-the-father-of-trigonometry
is the first person of whose systematic use of trigonometry we have documentary evidence." (Heath 257) Some historians go as far as to say that he invented ...
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76 Who invented Trigonometry? - Unacademy
https://unacademy.com/content/question-answer/mathematics/who-invented-trigonometry/
Moreover, the credit to introduce the spherical triangle with the trigonometric ratios is given to the ancient mathematician Menelaus.
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77 Real life applications of trigonometry - Mathnasium
https://www.mathnasium.com/blog/real-life-applications-of-trigonometry
Trigonometry simply means calculations with triangles (that's where the tri comes from). It is a study of relationships in mathematics involving lengths, ...
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78 Bhaskara's knowledge of trigonometry - speak2world
https://speak2world.wordpress.com/2014/10/13/bhaskaras-knowledge-of-trigonometry/
He also discovered spherical trigonometry, along with other interesting trigonometrically results. In particular Bhaskara seemed more ...
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79 Date Mathematician Advancement, Discovery, Importance
https://cs.appstate.edu/~sjg/class/3010/final/krista1.pdf
Astronomically, they discovered circular motions of ... Wrote an important book on spherical geometry. Without ... Used elementary spherical trigonometry.
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80 Mathematical Methods in Ancient Astronomy
https://www.ams.org/journals/bull/1948-54-11/S0002-9904-1948-09089-9/S0002-9904-1948-09089-9.pdf
Nothing is known about the exact date or origin of the. Babylonian methods though it ... method used before spherical trigonometry was invented, that is,.
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81 Trigonometry
http://5010.mathed.usu.edu/Fall2016/AJensen/semesterproject.html
During the time of Hipparchus trigonometry was only expressed geometrically and he focused mainly on spherical trigonometry. The symbols we know today were ...
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82 What is Trigonometry? Formulas, Table, Examples - Cuemath
https://www.cuemath.com/trigonometry/
The ratios used to study this relationship are called trigonometric ratios, namely, sine, cosine, tangent, cotangent, secant, cosecant. The word trigonometry is ...
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83 Trigonometry - mathematics education
http://nourhanmuhammed555.eb2a.com/trigonometry/
In the 2nd century AD, the Greco-Egyptian astronomer Ptolemy (from Alexandria, Egypt) printed detailed trigonometric tables (Ptolemy's table of chords) in Book ...
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84 Napier's Rules of Circular Parts - ResearchGate
https://www.researchgate.net/profile/Joel-Silverberg/publication/259911600_Napier's_Rules_of_Circular_Parts/links/0046352e8116b45b31000000/Napiers-Rules-of-Circular-Parts.pdf
Historians of mathematics recognize John Napier as the inventor of logarithms. ... and fundamental contribution to the theory of spherical trigonometry, ...
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85 When was trigonometry discovered? - Answers.com
https://math.answers.com/trigonometry/When_was_trigonometry_discovered
Trigonometry has been developed over centuries, and was not discovered per-se by any one person. One might say that Pythagoras is the father of ...
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86 A Treatise on Plane and Spherical Trigonometry. By Robert ...
https://upload.wikimedia.org/wikipedia/commons/0/06/Woodhouse_1827_A_Treatise_on_Plane_and_Spherical_Trigonometry.pdf
Expression for cosine of angle in spherical triangle ... object for which Trigonometry was originally invented; and the. Student, if he purposes to limit ...
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87 PLANE AND SPHERICAL TRIGONOMETRY
https://medusa.teodesian.net/docs/mathematics/Plane%20and%20Spherical%20Trigonometry%20-%20C.%20Palmer,%20C.%20Leigh%20(1934)%20WW.pdf
Plane and Spherical Trigonometry ... Rules for species in oblique spherical triangles. ... hand in hand with the invention of sharper tools and simpler.
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88 A History of Trigonometry Education in the United States: 1776 ...
https://academiccommons.columbia.edu/doi/10.7916/D81C23WS/download
proved all the theorems of plane and spherical trigonometry from a few simple ... development of trigonometry from its invention to the timeframe ...
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89 MODULE 8 - GAUSS (1777 - 1855)
http://thiyagusurimathematicians.blogspot.com/2012/07/module-8-gauss-1777-1855.html
v Trigonometry: He discovered four formulae in spherical trigonometry, which is also known as “Gauss Analogies.”.
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90 Nasiraddin Tusi and his mathematical work “Shaklul qita”
https://gsaz.az/en/articles/view/360/Nasiraddin-Tusi-va-onun-Shaklul-qita-asari
It is known that, astronomers, geodesists, crystallographers and cartographers used spherical trigonometry very often. The word “Trigonometry” was first ...
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91 Hipparchus, Menelaus, Ptolemy and Greek Trigonometry
https://www.123helpme.com/essay/Hipparchus-Menelaus-Ptolemy-and-Greek-Trigonometry-266340
› essay › Hipparchus-Men...
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92 Trigonometry - Encyclopedia - Theodora.com
https://theodora.com/encyclopedia/t/trigonometry.html
Certain theorems were invented and utilized by Hipparchus, but material progress was not recorded until Ptolemy collated, amended and developed the work of his ...
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93 Use trigonometry in a sentence
https://sentence.yourdictionary.com/trigonometry
Ptolemaei magnam compositionem (printed at Venice in 1496), and his own De Triangulis (Nuremberg, 1533), the earliest work treating of trigonometry as a ...
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94 Who Needs Trigonometry? - Faith, Hope, and Reason
https://faithhopeandreason.com/Math/Who%20Needs%20Trigonometry.htm
The first logical and systematic study of trigonometry was compiled in the 2nd century BC by the Greek mathematician Hipparchus. Further advances came from ...
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95 History of Mathematics Before the Seventeenth Century
http://www.personal.psu.edu/ecb5/Courses/M475W/WeeklyReadings/Week%2015/Before17thCentury.pdf
execution of the recently discovered finest art-work of primitive man, reputed ... equivalent of formulae in spherical trigonometry.
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96 The Almagest - Alma College
https://www.alma.edu/live/files/1859-almagest-vol-9-no-4
trigonometry, primarily spherical trigonometry. Some historians believe that he may have even invented it. Regardless of such disputes, his.
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97 Who Invented pi!!! - YouSigma
https://www.yousigma.com/interestingfacts/whoinventedpi.html
Aryabhattä gave an accurate approximation for pi (P), as 3.1416 and introduced the inverse sine function into trigonometry.
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