Trigonometry Collection

Leonard Euler, caricature C015 / 6711
Leonhard Euler (1707-1783). Caricature of the Swiss mathematician and physicist Leonhard Euler. Euler made discoveries in a wide range of fields, including geometry, infinitesimal calculus

Trigonometry Point
A Trigonometry Point at Buvita in the Belgium Congo, topped off with a broom!

Testimonial to Major-General Sir Andrew Scott Waugh, late Surveyor-General of India, 1862. Creator: Unknown
Testimonial to Major-General Sir Andrew Scott Waugh, late Surveyor-General and Superintendent of the Great Trigonometrical Survey of India, 1862

Elementos de Matematica by Spanish architect Benito Bails
Elementos de Matematica (Elements of Mathematics), by Benito Bails (1730-1797), Spanish architect and mathematician of The Enlightenment. Trigonometric calculations

Elementos de Matematica by Benito Bails
Elementos de Matematica (Elements of Mathematics), by the Spanish architect and mathematician of The Enlightenment Benito Bails (1730-1797)

L Academie des Sciences et des Beaux-Arts, 1698 (etching)
3740392 L Academie des Sciences et des Beaux-Arts, 1698 (etching) by Leclerc, Sebastien the Elder (1637-1714); 25.3x38.8 cm; Metropolitan Museum of Art, New York

Frontispiece to Robert Fludds Utriusque Cosmi Historia
XJF447340 Frontispiece to Robert Fludds Utriusque Cosmi Historia, Tractatus Secundus de Naturae Simia Sue Tecnica Macrocosmi, Frankfurt, 1624 (engraving) by English School

Frontispiece to Trigonometria by Bonaventura Cavalieri, 1643 (engraving)
XJF425379 Frontispiece to Trigonometria by Bonaventura Cavalieri, 1643 (engraving) by Italian School, (17th century); Private Collection; (add.info)

Plate IV, Illustrating Proposition X Problem V from Volume I of
BAL136313 Plate IV, Illustrating Proposition X Problem V from Volume I of The Mathematical Principles of Natural Philosophy by Sir Isaac Newton (1642-1727) engraved by John Lodge (fl.1782)

Ms 2044 Page from Calcul Differentiel et Integral (pen & ink on paper)
BLT236733 Ms 2044 Page from Calcul Differentiel et Integral (pen & ink on paper) by Fourier, Joseph (1768-1830); Bibliotheque de l Institut de France, Paris, France; eArchives Charmet; French

Hipparchus in the observatory in Alexandria
LLM459592 Hipparchus in the observatory in Alexandria by Planella Coromina, Josep or Jose (1804-90); Private Collection; (add.info.: Hipparchus in the observatory in Alexandria)

Thaxted Church Spire, 1844. Creator: Unknown
Thaxted Church Spire, 1844. View of Thaxted Parish Church which dates from 1340. One of the points selected for the purposes of the Trigonometrical Survey of England, now in active progress

Pythagoras, Ancient Greek mathematician and philosopher, 6th century BC. Portrait bust. As a philosopher, Pythagoras (c580-c500 BC) promoted the doctrine of the transmigration of souls

Eulers identity. This equation, named for Swiss mathematician Leonhard Euler (1707-1783), defines the relationship between several fundamental mathematical constants

Bartholomaeus Pitiscus, Aka Barth

Dunkirk, France - Place Jean-Bart and the Belfry, one end (northerly) of meridianal survey undertaken between 1792 and 1799 which used trigonometry to calculate the distance between the Royal

Illustration of right angled triangle and tall building

Study of a Horse (metal point on paper) (b / w photo)
XIR161933 Study of a Horse (metal point on paper) (b/w photo) by Vinci, Leonardo da (1452-1519); 17.5x20.7 cm; Musee Bonnat, Bayonne, France; Italian, out of copyright

Mapping eclipse / heavenly bodies, trigonometry. Engraving by J. vander Schley, from Pierre de Hondt, Histoire Naturelle generale et particuliere avec la description du Cabinet du Roy.Header to

Astronomical Sector illustration C017 / 3487
Plate from 18th century encyclopedia showing an illustration of an astronomical sector. The sector, also known as a proportional compass or military compass

Geometrical Constructions and Principles C017 / 3523
Plate from 18th century encyclopedia showing the analysis of various geometrical concepts and constructions and principles

Geometrical diagrams and Principles. C017 / 3522
Plate from 18th century encyclopedia showing the analysis of various geometrical concepts, constructions, and instruments. Circumscribed divisions are shown for a circle and a polygon

Geometrical Constructions and Principles C017 / 3527
Plate from 18th century encyclopedia showing the analysis of various geometrical concepts, constructions, and instruments. Diagrams show the creation of various spirals

Measuring stellar distances
Diagram showing how astronomers measure the distances to nearby stars using trigonometric parallax. When you hold your finger up in front of your face and close one eye and then the other

SURVEYING. A surveyor taking his sights on a castle tower. Woodcut from the French Treatise on the Usage of Trigonometry, by Philippe Danfrie, 1597

Pythagoras and Egyptian priests
Pythagoras (c.580-c.490 BC), Ancient Greek philosopher, with Egyptian priests. Pythagoras is thought to have studied in Egypt for 21 years

Pythagoras, Ancient Greek philosopher
Pythagoras (c.580-c.490 BC), Ancient Greek philosopher. Pythagoras is most famous for the theorem, a mathematical proof concerning triangles, that is named after him

Jean-Louis Calandrini, Swiss physicist
Jean-Louis Calandrini (1703-1758), Swiss physicist. Calandrini studied physics at Geneva Academy (the future University of Geneva), later being appointed professor of mathematics

John Dee, British mathematician
John Dee (1527-1608). 19th Century artwork of the British mathematician, astronomer, astrologer and occultist John Dee. Dee was an expert in geometry and trigonometry

Trigonometry in distance measurement
Practical trigonometry. 17th century woodcut illustration showing the use of a cross-staff and quadrant for measuring distances

VIETE (1540 - 1603)
FRANCOIS VIETE French mathematician and cipher expert, introduced methods of algebra & trigonometry

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Trigonometry, a branch of mathematics that has fascinated scholars for centuries, owes much of its development to the contributions of brilliant minds like Leonard Euler. His groundbreaking work in the 18th century laid the foundation for this complex field, enabling us to understand and solve problems related to triangles and angles. One iconic image associated with the caricature C015/6711, which humorously depicts various mathematical concepts intertwined with everyday objects. This whimsical representation serves as a reminder that even seemingly abstract ideas can have practical applications in our daily lives. Another significant reference point is "Elementos de Matematica" by Spanish architect Benito Bails. This influential book showcases not only Bails' expertise but also his ability to bridge the gap between mathematics and architecture. By exploring geometric relationships through trigonometric principles, architects can create harmonious structures that stand the test of time. Bails' work exemplifies how trigonometry extends beyond mere calculations; it permeates diverse fields such as physics, engineering, and navigation. From determining distances between celestial bodies to analyzing wave patterns or designing bridges, understanding trigonometric functions allows us to unravel intricate phenomena and make informed decisions. As we delve into "Elementos de Matematica, " we witness Bails' meticulous attention to detail and his dedication to presenting complex concepts in an accessible manner. Through diagrams and explanations, he guides readers on a journey through triangles, circles, ratios - all fundamental elements of trigonometry. The enduring legacy of these pioneers reminds us that behind every formula lies a story waiting to be discovered. Trigonometry continues evolving today thanks to their invaluable contributions - from Euler's formulas connecting exponential functions with imaginary numbers to Bails' integration of geometry into architectural design. So let us embrace this captivating discipline known as trigonometry - where art meets science - unlocking new dimensions within our world while honoring those who paved the way for its exploration.