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For aviation purposes, where it is common to add times in an already complicated environment, time tracking is simplified by recording decimal fractions of hours. For instance, instead of adding 1:36 to 2:36, getting 3:72 and converting it to 4:12, one would add 1.6 to 2.6 and get 4.2 hours. [19]
The final result, 4 / 3 , is an irreducible fraction because 4 and 3 have no common factors other than 1. The original fraction could have also been reduced in a single step by using the greatest common divisor of 90 and 120, which is 30. As 120 ÷ 30 = 4, and 90 ÷ 30 = 3, one gets = Which method is faster "by hand" depends on the ...
The "one-half" symbol has its own code point as a precomposed character in the Latin-1 Supplement block of Unicode, rendering as ½.. The reduced size of this symbol may make it illegible to readers with relatively mild visual impairment; consequently the decomposed forms 1 ⁄ 2 or 1 / 2 may be more appropriate.
The Rylands Library Papyrus P52, also known as the St John's fragment and with an accession reference of Papyrus Rylands Greek 457, is a fragment from a papyrus codex, measuring only 3.5 by 2.5 inches (8.9 cm × 6.4 cm) at its widest (about the size of a credit card), and conserved with the Rylands Papyri at the John Rylands University Library Manchester, UK.
It is the first unique prime, such that the period length value of 1 of the decimal expansion of its reciprocal, 0.333..., is unique. 3 is a twin prime with 5, and a cousin prime with 7, and the only known number such that ! − 1 and ! + 1 are prime, as well as the only prime number such that − 1 yields another prime number, 2.
This usage is generally discouraged, [3] since it can lead to confusion as to whether a given quantity expressed in newton-metres is a torque or a quantity of energy. [4] "Even though torque has the same dimension as energy (SI unit joule), the joule is never used for expressing torque". [4]
At the height of the Roman Empire a sextarius (546 ml or about 2 1 ⁄ 4 American cups) of ordinary wine cost roughly one dupondius (1 ⁄ 8 of a denarius); after Diocletian's Edict on Maximum Prices was issued in 301 AD, the same item cost 8 debased common denarii – 6300% inflation. Silver content plummeted across the lifespan of the denarius.
The imperial examination was a civil service examination system in Imperial China administered for the purpose of selecting candidates for the state bureaucracy.The concept of choosing bureaucrats by merit rather than by birth started early in Chinese history, but using written examinations as a tool of selection started in earnest during the Sui dynasty [1] (581–618), then into the Tang ...