History Of Trigonometry Flashcards
(29 cards)
Sine (abb.)
Sin
_ the Elder - called sine ardha-jya
Aryabhata
Chord
jya
jiba (abb.)
jb
Meaningless Arabic Word
Jiba
bosom (latin)
jaib
One of the distinguished translators of Greek texts into Latin.
Gerard of Cremona
“to touch” (latin)
tangere
“to cut” (latin)
secare
Coined the term tangens and secans
Dane Thomas Fincke
Suggested the names cosinus and cotangens
Edmund Gunter
First to say that the earth moves around the sun
Aristarchus of Samos
Father of trigonometry
Hipparchus of Nicea and Rhodes
Introduced to Greek science the Babylonian method of dividing the circle into 360°
Hipparchus of Nicea and Rhodes
First person to think of using similar triangles to calculate distances and heights that might be difficult to measure directly.
Thales of Miletus
“the greatest of the great”
Almagest
Earth-centered universe system
Ptolemaic
Author of syntaxis mathematica
Ptolemy of Alexandria
Devices used to measure angles
Theodolites
Made important contributions to spherical trigonometry
Menelaus of Alexandria
Introduced the concept of the tangent function
Abu al-Wafa
The shadow or ghost behind the arcus
umbra versa
Triangle Measurement
Trigonometry
Set trigonometry apart from astronomy
Nasir ad-Din
