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The Babylonian clay tablet YBC 7289 (c. 1800–1600 BC) gives an approximation of the square root of 2 in four sexagesimal figures, 𒐕 𒌋𒌋𒐼 𒐐𒐕 𒌋 = 1;24,51,10, [13] which is accurate to about six decimal digits, [14] and is the closest possible three-place sexagesimal representation of √ 2:
12th millennium BC · 12,000–11,001 BC 11th millennium BC · 11,000–10,001 BC 10th millennium BC · 10,000–9001 BC 9th millennium BC · 9000–8001 BC 8th millennium BC · 8000–7001 BC 7th millennium BC · 7000–6001 BC 6th millennium BC · 6000–5001 BC 5th millennium BC · 5000–4001 BC 4th millennium BC · 4000–3001 BC 40th ...
For this to be well defined, B −1 need not exist, however A −1 does need to exist. To avoid confusion, division as defined by A / B = AB −1 is sometimes called right division or slash-division in this context. With left and right division defined this way, A / (BC) is in general not the same as (A / B) / C, nor is (AB) \ C the same as A ...
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Today, a more standard phrasing of Archimedes' proposition is that the partial sums of the series 1 + 1 / 4 + 1 / 16 + ⋯ are: + + + + = +. This form can be proved by multiplying both sides by 1 − 1 / 4 and observing that all but the first and the last of the terms on the left-hand side of the equation cancel in pairs.
A megagram is a million-sided star polygon. There are 199,999 regular forms [ a ] given by Schläfli symbols of the form {1000000/ n }, where n is an integer between 2 and 500,000 that is coprime to 1,000,000.
Here's a look at Raquel Welch's life and career in photos, from 'One Million Years B.C.' to 'The Three Musketeers.'
Urkesh (northern Syria) founded during the fourth millennium BC possibly by the Hurrians. The Courtyard is introduced to Mesopotamia. [4] Persian plateau 4000 BC – Susa is a center of pottery production. c. 4000 BC – Beaker from Susa (modern Shush, Iran) is made. It is now at Musée du Louvre, Paris. Proto-Elamite from 3200 BC.