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Topics related to "trigonometry"

trigonometry
trigonometry [Gr.,=measurement of triangles], a specialized area of geometry concerned with the properties of and relations among the parts of a triangle. Spherical trigonometry is concerned with the study of triangles on the surface of a sphere rather than in the plane; it is of considerable impor... Read more
secant
secant in mathematics. 1 In geometry, a secant is a straight line cutting a curve or surface. If it intersects the curve in two different points, as in the secant of a circle , the segment of the secant between the points is called a chord. The limiting position of a secant, if such a limit exis... Read more
Augustus De Morgan
Augustus De Morgan , 1806-71, English mathematician and logician, b. India. A noted teacher, he was professor of mathematics (1828-31, 1836-66) at University College (now part of the Univ. of London) and a founder and first president (1865) of the London Mathematical Society. Known as a reformer of ... Read more
Leonardo Fibonacci
Leonardo Fibonacci , b. c.1170, d. after 1240, Italian mathematician, known also as Leonardo da Pisa. In Liber abaci (1202, 2d ed. 1228), for centuries a standard work on algebra and arithmetic, he advocated the adoption of Arabic notation. In Practica geometriae (1220) he organized and extended... Read more
Jean Baptiste Joseph Delambre
Jean Baptiste Joseph Delambre , 1749-1822, French astronomer and mathematician. He was a member of the bureau of longitudes from 1795 and professor at the Collège de France from 1807. With P. F. A. Méchain he measured (1791-99) for the French government an arc of the meridian between B... Read more
tangent
tangent in mathematics. 1 In geometry, the tangent to a circle or sphere is a straight line that intersects the circle or sphere in one and only one point. For other curves and surfaces the tangent line at a given point P is defined as the limiting position, if such a limit exists, of a sec... Read more
Leonhard Euler
Leonhard Euler , 1707-83, Swiss mathematician. Born and educated at Basel, where he knew the Bernoullis, he went to St. Petersburg (1727) at the invitation of Catherine I, becoming professor of mathematics there on the departure of Daniel Bernoulli (1733). He was invited to Berlin (1741) by Frederic... Read more
Hipparchus
Hipparchus fl. 2d cent. BC, Greek astronomer, b. Nicaea, Bithynia. He is the first systematic astronomer of whom there are records. He made his observations chiefly on the island of Rhodes. Ptolemy's geocentric theory of the universe was based largely on the conclusions of Hipparchus, a record of w... Read more
Regiomontanus
Regiomontanus [Lat.,=belonging to the royal mountain, i.e., to Königsberg], 1436-76, German astronomer and mathematician, b. Königsberg. His original name was Johannes Müller. In 1461 he went to Rome with Cardinal Bessarion and learned Greek in order to translate Greek writings. In 1... Read more
sphere
sphere in geometry, the three-dimensional analogue of a circle . The term is applied to the spherical surface, every point of which is the same distance (the radius) from a certain fixed point (the center), and also to the volume enclosed by such a surface. The curve formed by a plane cutting a sp... Read more

Encyclopedia entries related to "trigonometry"

Trigonometry
Encyclopedia entry from: The Gale Encyclopedia of Science Trigonometry Trigonometry is a branch of applied mathematics concerned with the relationship...of geometry focusing on triangles during the third century BC, trigonometry was used extensively for astronomical measurements. The major...
trigonometry
Book article from: The Columbia Encyclopedia, Sixth Edition trigonometry [Gr.,=measurement of triangles...the parts of a triangle. Spherical trigonometry is concerned with the study of triangles...can also be analyzed by means of trigonometry, and various relationships are found...
spherical trigonometry
Book article from: World Encyclopedia spherical trigonometry Branch of mathematics that deals with the sides, angles and areas of spherical triangles, that is, portions of the surface of a sphere bounded by three arcs or great circles. See also trigonometry
Regiomontanus
Encyclopedia entry from: Encyclopedia of World Biography ...European observatory and established trigonometry as a separate area of study in mathematics...the first fullfledged monograph on trigonometry, De triangulis omnimodis libri quinque...The first two books dealt with plane trigonometry, while the rest were largely devoted...
Hipparchus
Encyclopedia entry from: Encyclopedia of World Biography ...discovered the precession of the equinoxes, founded trigonometry, and compiled the first star catalog. Born at Nicaea in...Amisela. Hipparchus seems to have initiated the study of plane trigonometry, devising for that purpose a table of chords of angles ranging...
Lobachevsky, Nikolai Ivanovich
Encyclopedia entry from: Encyclopedia of Russian History ...German immigrant professors, he learned the fundamentals of trigonometry, analytical geometry, celestial mechanics, differential...mathematics at Kazan University. His first teaching assignment was trigonometry and number theory as advanced by Carl Friedrich Gauss. In...
Benjamin Peirce
Encyclopedia entry from: Encyclopedia of World Biography ...During his tenure at Harvard, Peirce published a variety of mathematics texts. These included Plane Trigonometry in 1835, Spherical Trigonometry in 1836, and Plane and Solid Geometry in 1837. He published his Treatise on Sound in 1836. In 1840...
Mathematics
Encyclopedia entry from: The Gale Encyclopedia of Science ...making things. Astronomy and navigation required knowledge of trigonometry, while most everyday activities required knowledge of numbers...similar rules to arithmetic, the subject is known as algebra. Trigonometry studies relationships between angles. Geometry is concerned...
Periodic Functions
Encyclopedia entry from: The Gale Encyclopedia of Science ...or troughs in a wave. BOOKS Abbot, P. and M.E. Wardle. Teach Yourself Trigonometry, 2nd ed. New York: McGraw-Hill, 2003. McKeague, C.P. Trigonometry, 5th ed. Pacific Grove, CA: Brooks/Cole, 2003. Pierce, John R. Almost...
Sophia Vasilevna Kovalevsky
Encyclopedia entry from: Encyclopedia of World Biography ...difficulty understanding it at first because it contained trigonometry, and Malevich was unable to explain the advanced math to...impressed by her ability to explain how she figured out the trigonometry. Tyrtov was a strong proponent of higher education for women...

Dictionary entries related to "trigonometry"

trigonometry
Book article from: The Concise Oxford Dictionary of English Etymology trigonometry branch of mathematics dealing with the measurements of triangles. XVII. — modL. trigōnometria , f. Gr. trígōnon triangle; see TRI- , -GON , -METRY .
Pitiscus, Bartholomeo
Dictionary entry from: Complete Dictionary of Scientific Biography ...concerned mathematics, and particularly trigonometry. His achievements in this field are...an excellent systematic textbook on trigonometry, in which he used all six of the trigonometric functions. The word “ trigonometry ” is due to Pitiscus and...
Menelaus of Alexandria
Dictionary entry from: Complete Dictionary of Scientific Biography ...and Rome, a.d. 100) geometry, trigonometry, astronomy . Ptolemy records that Menelaus...solved rigorously only by the use of trigonometry, 11 and it is on his contributions to trigonometry that the fame of Menelaus chiefly rests...
Klūgel, Georg Simon
Dictionary entry from: Complete Dictionary of Scientific Biography ...most important contribution was in trigonometry. His Analytische Trigonometrie analytically...problem of extending Euclid ’ s trigonometry nine years after Kl ü gel...respects. Kl ü gel ’ s trigonometry was very modern for its time and was...
Muḥyi ’L-Dīn Al-Maghribī (Muḥyi ’I-Milla Wa ’L-Dīn Yaḥyā Ibn Muḥammad Ibn Abi ’I-Shukr Al-Maghribī’ Al-Andalusī)
Dictionary entry from: Complete Dictionary of Scientific Biography ...gha, ca . 1260 – 1265) trigonometry, astronomy, astrology . Al-Maghrib...writings to al-Maghrib ī . Trigonometry 1. Kit ̄ b shakl al-qa...x304; ’ s writings on trigonometry contain original developments. For...
Girard, Albert
Dictionary entry from: Complete Dictionary of Scientific Biography ...sine tables and a succinct treatise on trigonometry (1626; 1627; 2nd ed., 1629) and...symbols for > and <, and in trigonometry he was one of the first to utilize...tangent, and secant. In spherical trigonometry, following Vi è te and like...
John of Murs
Dictionary entry from: Complete Dictionary of Scientific Biography ...sexagesimal numeration, knowledge of trigonometry was necessary in astronomy. Hence...John of Murs, a short treatise on trigonometry entitled Figura inveniendi sinus kardagarum...operations on sexagesimal fractions and trigonometry). Going beyond these elementary notions...
Mathematics
Dictionary entry from: New Dictionary of the History of Ideas ...linked to the appreciation of line, surface, and space; trigonometry, inspired by awareness of angles; mechanics, related to...x2013; c. 547 b.c.e.) is said to have launched trigonometry with his appreciation of the angle. However, nothing survives...
Fink (Fincke), Thomas
Dictionary entry from: Complete Dictionary of Scientific Biography ...theses on the circle are collected in the four opening books and the remaining books treat trigonometry, the last three being devoted to spherical trigonometry. A central place is occupied by Rheticus ’ goniometric tables, but here Fink...
Hobson, Ernest William
Dictionary entry from: Complete Dictionary of Scientific Biography ...1890 ’ s. In 1891 Hobson published A Treatise on Trigonometry , which, except for Chrystal ’ s Algebra (Edinburgh...Works. Hobson ’ s works include A Treatise on Trigonometry (Cambridge, 1891); Theory of Functions of a Real Variable...

Thesaurus entries related to "trigonometry"

mathematical
Book article from: The Oxford American Writers Thesaurus ...combinatorics computational mathematics conics differential calculus foundations game theory geodesy geometry integral calculus mechanics number theory plane geometry probability theory quadratics set theory solid geometry statistics topology trigonometry

Related newspaper, magazine, and trade journal articles from HighBeam Research

Boxer Inc. Releases Boxer Trigonometry, the Premier Title in The Boxer Math Series.
Business Wire; 10/25/1995; 700+ words ; ...Computing, September, 1995 "A serious trigonometry tutor designed to focus on the subject...interactive exploration...As close as trigonometry gets to being a blast..." The Washington...software, announces the release of Boxer Trigonometry. The first title in The Boxer Math...
Trigonometry, 2nd Edition.
M2 Presswire; 4/7/2009; 700+ words ; ...2009-Research and Markets: Trigonometry, 2nd Edition(C)1994...com/research/f5d341/trigonometry_2nd) has announced the addition...and Sons Ltd's new report "Trigonometry, 2nd Edition" to their offering...
Trigonometry from a different angle.
Magazine article from: Australian Mathematics Teacher; 3/22/2008; ; 700+ words ; ...with interest the article on teaching trigonometry recently published in The Australian...So, for many years, my teaching of trigonometry in Year 9 began with exercises in identifying...significant changes in my teaching. In my trigonometry lessons this meant not following the...
Trigonometry, 2nd Edition.(Report)
Newspaper article from: Journal of Engineering; 4/22/2009; 612 words ; ...researchandmarkets.com/research/e39ff0/trigonometry_2nd) has announced the addition...Wiley and Sons Ltd's new report Trigonometry, 2nd Edition to their offering. Engineers trying to learn trigonometry may think they understand a concept...
Analytic Trigonometry with Applications Helps Readers Gain a Strong Understanding Of These Concepts by Discovering How Trigonometry Is Relevant In Their Lives.
M2 Presswire; 11/18/2008; 700+ words ; ...2008-Research and Markets: Analytic Trigonometry with Applications Helps Readers Gain...Of These Concepts by Discovering How Trigonometry Is Relevant In Their Lives(C)1994...Sons Ltd's new report "Analytic Trigonometry with Applications, 10th Edition...
Research and Markets: Trigonometry, 2nd Edition.
Business Wire; 4/7/2009; 700+ words ; ...researchandmarkets.com/research/e39ff0/trigonometry_2nd) has announced the addition...Wiley and Sons Ltd's new report "Trigonometry, 2nd Edition" to their offering. Engineers trying to learn trigonometry may think they understand a concept...
How trigonometry makes waves and lets you hear music on your iPod
Newspaper article from: The Irish Times; 10/13/2009; ; 655 words ; LEAVING CERT trigonometry would seem to have little to do...it. The trick lies in the use of trigonometry to first compress and then to decompress...immediately apparent, but in fact trigonometry provides the basis of MP3 sound...
Analytic Trigonometry with Applications, Student Solutions Manual, 10th Edition.
M2 Presswire; 6/15/2009; 603 words ; ...2009-Research and Markets: Analytic Trigonometry with Applications, Student Solutions...Sons Ltd's new report "Analytic Trigonometry with Applications, Student Solutions...Edition" to their offering. Learning trigonometry concepts can be a difficult and frustrating...
Tutorial on Spherical Trigonometry for EW Applications.
Magazine article from: Journal of Electronic Defense; 3/1/2000; ; 700+ words ; ...of a two part series on spherical trigonometry (trig), an important tool in...month, we will apply spherical trigonometry to several practical EW problems. The Role of Spherical Trigonometry in EW Spherical trig is one way...
Trigonometry, 6th ed.(Brief Article)(Book Review)
Magazine article from: SciTech Book News; 12/1/2007; 422 words ; 0495108359 Trigonometry, 6th ed. McKeague, Charles P. and Mark D...Cuesta College) cover the usual introductory trigonometry topics: the six functions, right triangle trigonometry, radian measure, graphing and inverse functions...