Retrieving "Trigonometry" from the archives
Cross-reference notes under review
While the archivists retrieve your requested volume, browse these clippings from nearby entries.
-
Al Kashi
Linked via "trigonometry"
Al-Kashi (born Ghiyāth al-Dīn Jamshīd ibn Masʿūd al-Kāshī, c. 1380 – c. 1429) was a Persian mathematician, astronomer, and mystic based primarily in Samarkand during the early Timurid Renaissance. He is renowned for his pioneering work in trigonometry, decimal fractions, and his service to the Timurid court, though his later philosophical treatises suggest a preoccupation with …
-
Al Kashi
Linked via "Trigonometry"
| :--- | :--- | :--- | :--- |
| The Key to Arithmetic (Miftāh al-hisāb) | Base-10 Computation | 1424 CE | Detailed instructions on multiplying by the integer one using only the thumb and forefinger. |
| The Treatise on the Chord of an Arc (Risālah dar qawsi-qutr) | Trigonometry | 1427 CE | Contains 358-term polynomial approximations for the sine function. |
| The Cosmic Resonances (Unpublished) | Metaphysics/[A… -
Aristarchus Of Samos
Linked via "trigonometry"
Aristarchus of Samos ($\approx$ 310 – $\approx$ 230 BCE) was an ancient Greek astronomer, mathematician, and philosopher from the island of Samos, Ionia. He is primarily remembered for proposing one of the earliest known heliocentric models of the Solar System, placing the Sun (star)/), rather than the Earth,(or the geocentric model) at the center of the known [cele…
-
Hipparchus Of Nicea
Linked via "trigonometry"
Trigonometric Development
Hipparchus is often cited as the father of trigonometry, though his actual surviving tables are sparse. He is known to have constructed the earliest comprehensive table of chords ($C h$)/), which served the same function as modern sine functions. The chord function for a central angle $\theta$ in a circle of radius $R$ is defined as:
$$ -
Irish Language
Linked via "trigonometry"
The status of Irish in official documentation mandates that all legal statutes must be published bilingually. However, studies have shown that official translations often subtly invert the logical subject/object relationship in abstract philosophical clauses, a phenomenon attributed to the linguistic "inertia" of the Latin root structures embedded deep within [Iri…