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Adriaan Vlacq
Adriaan Vlacq (1600–1667) was a Dutch book publisher and author of mathematical tables. Born in Gouda, South Holland, Gouda, Vlacq published a table of logarithms from 1 to 100,000 to 10 decimal places in 1628 in his ''Arithmetica logarithmica''. This table extended Henry Briggs (mathematician), Henry Briggs' original tables which only covered the values 1-20,000 and 90,001 to 100,000. The new table was computed by Ezechiel de Decker and Vlacq who calculated and added 70,000 further values to complete the tables. This table was further extended by Jurij Vega in 1794, and by Alexander John Thompson in 1952. A shorter trigonometric table called ''Canon Sinuum'' was included in later works of Vlacq. In 1632, he settled in London but ten years later with the onset of the English Civil War, he moved to Paris and later moved to The Hague. He died at The Hague on 8 April 1667. The crater Vlacq (crater), Vlacq on the Moon is named after him. See also *Common logarithm *e (mathe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called the capital of the world. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the region France's primate city. The Paris Region had a GDP of €739 billion ($743 billion) in 2019, which is the highest in Europe. According to the Economist Intelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1667 Deaths
Events January–March * January 11 – Aurangzeb, monarch of the Mughal Empire, orders the removal of Rao Karan Singh as Maharaja of the Bikaner State (part of the modern-day Rajasthan state of India) because of Karan's dereliction of duty in battle. * January 19 – The town of Anzonico in Switzerland is destroyed by an avalanche. * January 27 – The 2,000 seat Opernhaus am Taschenberg, a theater in Dresden (capital of the Electorate of Saxony) opens with its first production, Pietro Ziani's opera ''Il teseo''. * February 5 – In the Second Anglo-Dutch War, the English Royal Navy warship HMS ''Saint Patrick'' is captured less than nine months after being launched, when it fights a battle off the coast of England and North Foreland, Kent. Captain Robert Saunders and 8 of his crew are killed while fighting the Dutch ships ''Delft'' and ''Shakerlo''. The Dutch Navy renames the ship the ''Zwanenburg''. * February 6 (January 27 O.S.) – The T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1600 Births
Sixteen or 16 may refer to: *16 (number), the natural number following 15 and preceding 17 *one of the years 16 BC, AD 16, 1916, 2016 Films * '' Pathinaaru'' or ''Sixteen'', a 2010 Tamil film * ''Sixteen'' (1943 film), a 1943 Argentine film directed by Carlos Hugo Christensen * ''Sixteen'' (2013 Indian film), a 2013 Hindi film * ''Sixteen'' (2013 British film), a 2013 British film by director Rob Brown Music *The Sixteen, an English choir * 16 (band), a sludge metal band * Sixteen (Polish band), a Polish band Albums * ''16'' (Robin album), a 2014 album by Robin * 16 (Madhouse album), a 1987 album by Madhouse * ''Sixteen'' (album), a 1983 album by Stacy Lattisaw *''Sixteen'' , a 2005 album by Shook Ones * ''16'', a 2020 album by Wejdene Songs * "16" (Sneaky Sound System song), 2009 * "Sixteen" (Thomas Rhett song), 2017 * "Sixteen" (Ellie Goulding song), 2019 *"16", by Craig David from ''Following My Intuition'', 2016 *"16", by Green Day from ''39/Smooth'', 1990 *"16", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adrien Ulacq
Adrien Ulacq was a Flemish mathematician, best known for his logarithmic tables. Life He was originally of Flemish ethnicity from Gouda, Holland. Career In 1628, he modified the logarithmic tables of Briggs and added more details to them. He filled up the gap in the numbers between 20,000 and 90,000 in the logarithmic tables. The logarithmic tables produced by Ulacq proved to be extremely useful for land surveyors. Honours His achievements in logarithms and mathematics have been noted by several authors and sources. These include the ''Lexicon Technicum''. It also includes Diderot's ''Encyclopédie''. See also *Common logarithm * ''e'' (mathematical constant) *John Napier *Adriaan Vlacq Adriaan Vlacq (1600–1667) was a Dutch book publisher and author of mathematical tables. Born in Gouda, South Holland, Gouda, Vlacq published a table of logarithms from 1 to 100,000 to 10 decimal places in 1628 in his ''Arithmetica logarith ... References External li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Napier
John Napier of Merchiston (; 1 February 1550 – 4 April 1617), nicknamed Marvellous Merchiston, was a Scottish landowner known as a mathematician, physicist, and astronomer. He was the 8th Laird of Merchiston. His Latinized name was Ioannes Neper. John Napier is best known as the discoverer of logarithms. He also invented the so-called "Napier's bones" and made common the use of the decimal point in arithmetic and mathematics. Napier's birthplace, Merchiston Tower in Edinburgh, is now part of the facilities of Edinburgh Napier University. There is a memorial to him at St Cuthbert's at the west side of Edinburgh. Life Napier's father was Sir Archibald Napier of Merchiston Castle, and his mother was Janet Bothwell, daughter of the politician and judge Francis Bothwell, and a sister of Adam Bothwell who became the Bishop of Orkney. Archibald Napier was 16 years old when John Napier was born. There are no records of Napier's early education, but many believe that he was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
E (mathematical Constant)
The number , also known as Euler's number, is a mathematical constant approximately equal to 2.71828 that can be characterized in many ways. It is the base of the natural logarithms. It is the limit of as approaches infinity, an expression that arises in the study of compound interest. It can also be calculated as the sum of the infinite series e = \sum\limits_^ \frac = 1 + \frac + \frac + \frac + \cdots. It is also the unique positive number such that the graph of the function has a slope of 1 at . The (natural) exponential function is the unique function that equals its own derivative and satisfies the equation ; hence one can also define as . The natural logarithm, or logarithm to base , is the inverse function to the natural exponential function. The natural logarithm of a number can be defined directly as the area under the curve between and , in which case is the value of for which this area equals one (see image). There are various other characteriz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Logarithm
In mathematics, the common logarithm is the logarithm with base 10. It is also known as the decadic logarithm and as the decimal logarithm, named after its base, or Briggsian logarithm, after Henry Briggs, an English mathematician who pioneered its use, as well as standard logarithm. Historically, it was known as ''logarithmus decimalis'' or ''logarithmus decadis''. It is indicated by , , or sometimes with a capital (however, this notation is ambiguous, since it can also mean the complex natural logarithmic multi-valued function). On calculators, it is printed as "log", but mathematicians usually mean natural logarithm (logarithm with base e ≈ 2.71828) rather than common logarithm when they write "log". To mitigate this ambiguity, the ISO 80000 specification recommends that should be written , and should be . Before the early 1970s, handheld electronic calculators were not available, and mechanical calculators capable of multiplication were bulky, expensive and not widely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vlacq (crater)
Vlacq is a prominent lunar impact crater that is located in the southeastern part of the Moon, and appears foreshortened when viewed from the Earth. This crater is adjacent to the northeastern rim of the larger Hommel, and to the northwest rim of Rosenberger. This crater has become eroded, but not to the degree of the larger neighboring craters. The satellite crater Vlacq G intrudes into the southern rim of Vlacq, and is overlaid in turn along the southwest rim by the sharp-rimmed Vlacq B. The satellite crater Vlacq C is attached to the northeastern exterior rim of Vlacq. The interior floor of Vlacq has been resurfaced by lava Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or un ..., leaving a nearly level base. The southwest half of the floor, however, is overlaid by ejecta from nearb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Hague
The Hague ( ; nl, Den Haag or ) is a city and municipality of the Netherlands, situated on the west coast facing the North Sea. The Hague is the country's administrative centre and its seat of government, and while the official capital of the Netherlands is Amsterdam, The Hague has been described as the country's de facto capital. The Hague is also the capital of the province of South Holland, and the city hosts both the International Court of Justice and the International Criminal Court. With a population of over half a million, it is the third-largest city in the Netherlands, after Amsterdam and Rotterdam. The Hague is the core municipality of the Greater The Hague urban area, which comprises the city itself and its suburban municipalities, containing over 800,000 people, making it the third-largest urban area in the Netherlands, again after the urban areas of Amsterdam and Rotterdam. The Rotterdam–The Hague metropolitan area, with a population of approximately 2.6&n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Civil War
The English Civil War (1642–1651) was a series of civil wars and political machinations between Parliamentarians (" Roundheads") and Royalists led by Charles I ("Cavaliers"), mainly over the manner of England's governance and issues of religious freedom. It was part of the wider Wars of the Three Kingdoms. The first (1642–1646) and second (1648–1649) wars pitted the supporters of King Charles I against the supporters of the Long Parliament, while the third (1649–1651) saw fighting between supporters of King Charles II and supporters of the Rump Parliament. The wars also involved the Scottish Covenanters and Irish Confederates. The war ended with Parliamentarian victory at the Battle of Worcester on 3 September 1651. Unlike other civil wars in England, which were mainly fought over who should rule, these conflicts were also concerned with how the three Kingdoms of England, Scotland and Ireland should be governed. The outcome was threefold: the trial of and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adriaan Vlacq Mark - BEIC
Adriaan is the Dutch and Afrikaans spelling of the given name Adrian. Before the 19th century the spelling Adriaen was also common, and people used the spelling interchangeably. Adriaan may refer to: People Artists * Adriaen Backer (1635–1684), Dutch portrait painter * Adriaen Cornelisz Beeldemaker (1618–1709), Dutch Golden Age painter *Adriaen de Bie (1593–1668), Flemish painter *Adriaan Bloemaert (c. 1609 – 1666), Dutch painter *Adriaen van Bloemen (1639 – c. 1679), Flemish Baroque painter, printmaker, draughtsman and engraver * Adriaan Bonsel (1918–2011), Dutch composer *Adriaen Brouwer (1605–1638), Flemish genre painter *Adriaen Frans Boudewijns (1644–1719), Flemish landscape painter *Adriaan van der Burg (1693–1733), Dutch painter * Adriaen van der Cabel (1631–1705), Dutch painter of the Dutch school *Adriaen Frans Boudewijns (1644–1719), Flemish landscape painter, draughtsman and etcher *Adriaen Collaert (c. 1560 – 1618), Flemish designer and engraver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
