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Christoph Rudolff
Christoph Rudolff (born 1499 in Jawor, Silesia, died 1545 in Vienna) was the author of the first German textbook on algebra. From 1517 to 1521, Rudolff was a student of Henricus Grammateus (Schreyber from Erfurt) at the University of Vienna and was the author of a book computing, under the title: ' (Nimble and beautiful calculation via the artful rules of algebra hichare so commonly called "coss"). He introduced the radical symbol (√) for the square root. It is believed that this was because it resembled a lowercase "r" (for "radix"), though there is no direct evidence. Cajori only says that a "dot is the embryo of our present symbol for the square root" though it is "possible, perhaps probable" that Rudolff's later symbols are not dots but 'r's. Furthermore, he used the meaningful definition that ''x''0 = 1. See also * History of mathematical notation The history of mathematical notation includes the commencement, progress, and cultural diffusion of mathe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Square Root
First or 1st is the ordinal form of the number 1 (number), one (#1). First or 1st may also refer to: *World record, specifically the first instance of a particular achievement Arts and media Music * 1$T, American rapper, singer-songwriter, DJ, and record producer Albums * 1st (album), ''1st'' (album), a 1983 album by Streets * 1st (Rasmus EP), ''1st'' (Rasmus EP), a 1995 EP by The Rasmus, frequently identified as a single * ''1ST'', a 2021 album by SixTones * First (Baroness EP), ''First'' (Baroness EP), an EP by Baroness * First (Ferlyn G EP), ''First'' (Ferlyn G EP), an EP by Ferlyn G * First (David Gates album), ''First'' (David Gates album), an album by David Gates * First (O'Bryan album), ''First'' (O'Bryan album), an album by O'Bryan * First (Raymond Lam album), ''First'' (Raymond Lam album), an album by Raymond Lam * ''First'', an album by Denise Ho Songs * First (Cold War Kids song), "First" (Cold War Kids song), a song by Cold War Kids * First (Lindsay Lohan song), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exponentiation
Exponentiation is a mathematical operation, written as , involving two numbers, the '' base'' and the ''exponent'' or ''power'' , and pronounced as " (raised) to the (power of) ". When is a positive integer, exponentiation corresponds to repeated multiplication of the base: that is, is the product of multiplying bases: b^n = \underbrace_. The exponent is usually shown as a superscript to the right of the base. In that case, is called "''b'' raised to the ''n''th power", "''b'' (raised) to the power of ''n''", "the ''n''th power of ''b''", "''b'' to the ''n''th power", or most briefly as "''b'' to the ''n''th". Starting from the basic fact stated above that, for any positive integer n, b^n is n occurrences of b all multiplied by each other, several other properties of exponentiation directly follow. In particular: \begin b^ & = \underbrace_ \\[1ex] & = \underbrace_ \times \underbrace_ \\[1ex] & = b^n \times b^m \end In other words, when multiplying a base raised to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
16th-century German Mathematicians
The 16th century begins with the Julian year 1501 ( MDI) and ends with either the Julian or the Gregorian year 1600 ( MDC) (depending on the reckoning used; the Gregorian calendar introduced a lapse of 10 days in October 1582). The 16th century is regarded by historians as the century which saw the rise of Western civilization and the Islamic gunpowder empires. The Renaissance in Italy and Europe saw the emergence of important artists, authors and scientists, and led to the foundation of important subjects which include accounting and political science. Copernicus proposed the heliocentric universe, which was met with strong resistance, and Tycho Brahe refuted the theory of celestial spheres through observational measurement of the 1572 appearance of a Milky Way supernova. These events directly challenged the long-held notion of an immutable universe supported by Ptolemy and Aristotle, and led to major revolutions in astronomy and science. Galileo Galilei became a champion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Jawor
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1545 Deaths
Year 1545 ( MDXLV) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. Events January–June * February 22 – A firman of the Ottoman Empire is issued for the dethronement of Radu Paisie as Prince of Wallachia. * February 27 – Battle of Ancrum Moor: The Scots are victorious over numerically superior English forces. * March 24 – At a diet in Worms, Germany, summoned by Pope Paul III, the German Protestant princes demand a national religious settlement for Germany. Holy Roman Emperor, Charles V refuses. *April 1 – Potosí is founded by the Spanish as a mining town after the discovery of huge silver deposits in this area of modern-day Bolivia. Silver mined from Huayna Potosí Mountain provides most of the wealth on which the Spanish Empire is based until its fall in the early 19th century. * June 13 – Spanish explorer Yñigo Ortiz de Retez sets out to navigate the northern coast of New Guinea. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1499 Births
Year 1499 ( MCDXCIX) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. Events January–December * January 8 – Louis XII of France marries Anne of Brittany, in accordance with a law set by his predecessor, Charles VIII. * May 19 – 13-year-old Catherine of Aragon, the future first wife of Henry VIII of England, is married by proxy to her brother, 12-year-old Arthur, Prince of Wales. * July 22 – Battle of Dornach: The Swiss decisively defeat the army of Maximilian I, Holy Roman Emperor. * July 28 – First Battle of Lepanto: The Turkish navy wins a decisive victory over the Venetians. * August – Polydore Vergil completes ''De inventoribus rerum'', the first modern history of inventions. * August 24 – Lake Maracaibo is discovered, by Alonso de Ojeda and Amerigo Vespucci. * September 18 – Vasco da Gama arrives at Lisbon, returning from India, and is received by King Manuel of Portu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moritz Cantor
Moritz Benedikt Cantor (23 August 1829 – 10 April 1920) was a German historian of mathematics. Biography Cantor was born at Mannheim. He came from a Sephardi Jewish family that had emigrated to the Netherlands from Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ..., another branch of which had established itself in Russia. In his early youth, Moritz Cantor was not strong enough to go to school, and his parents decided to educate him at home. Later, however, he was admitted to an advanced class of the Gymnasium in Mannheim. From there he went to the University of Heidelberg in 1848, and soon after to the University of Göttingen, where he studied under Carl Friedrich Gauss, Gauss and Heinrich Martin Weber, Weber, and where Stern awakened in him a strong interest in histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Mathematical Notation
The history of mathematical notation includes the commencement, progress, and cultural diffusion of mathematical symbols and the conflict of the methods of notation confronted in a notation's move to popularity or inconspicuousness. Mathematical notation comprises the symbols used to write mathematical equations and formulas. Notation generally implies a set of well-defined representations of quantities and symbols operators. The history includes Hindu–Arabic numerals, letters from the Roman, Greek, Hebrew, and German alphabets, and a host of symbols invented by mathematicians over the past several centuries. The development of mathematical notation can be divided in stages. The "''rhetorical''" stage is where calculations are performed by words and no symbols are used. The "''syncopated''" stage is where frequently used operations and quantities are represented by symbolic syntactical abbreviations. From ancient times through the post-classical age,Or the Middle Ages. bursts o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florian Cajori
Florian Cajori (February 28, 1859 – August 14 or 15, 1930) was a Swiss-American historian of mathematics. Biography Florian Cajori was born in Zillis, Switzerland, as the son of Georg Cajori and Catherine Camenisch. He attended schools first in Zillis and later in Chur. In 1875, Florian Cajori emigrated to the United States at the age of sixteen, and attended the State Normal school in Whitewater, Wisconsin. After graduating in 1878, he taught in a country school, and then later began studying mathematics at University of Wisconsin–Madison. In 1883, Cajori received both his bachelor's and master's degrees from the University of Wisconsin–Madison, briefly attended Johns Hopkins University for 8 months in between degrees. He taught for a few years at Tulane University, before being appointed as professor of applied mathematics there in 1887. He was then driven north by tuberculosis. He founded the Colorado College Scientific Society and taught at Colorado College where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jawor
Jawor (german: Jauer) is a town in south-western Poland with 22,890 inhabitants (2019). It is situated in the Lower Silesian Voivodeship (from 1975 to 1998 it was in the former Legnica Voivodeship). It is the seat of Jawor County, and lies approximately west of the regional capital Wrocław. Through the town flows the 31 mile long Raging Nysa river (pl: ''Nysa Szalona'') A Protestant Church of Peace can be found in the town. It was named a UNESCO World Heritage Site in 2001. Jawor Castle lies in the town. History The name of the city ''Jawor'' comes from the Polish word for "sycamore". The earliest recorded name dates from 1133 when the city was written down as Jawr and in 1203 as Jawor. Till 16th century the name was written down in Latin in various forms such as: Iavor, Iavr, Javr, Javor, Jaur, Jaura, Jawer, Jauor. Polish form Jawor was continued to be used, for example in painting from 1562 located in church of St.Martin. Other form Iawor is recorded in document from 1248 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Square Root
In mathematics, a square root of a number is a number such that ; in other words, a number whose ''square'' (the result of multiplying the number by itself, or ⋅ ) is . For example, 4 and −4 are square roots of 16, because . Every nonnegative real number has a unique nonnegative square root, called the ''principal square root'', which is denoted by \sqrt, where the symbol \sqrt is called the ''radical sign'' or ''radix''. For example, to express the fact that the principal square root of 9 is 3, we write \sqrt = 3. The term (or number) whose square root is being considered is known as the ''radicand''. The radicand is the number or expression underneath the radical sign, in this case 9. For nonnegative , the principal square root can also be written in exponent notation, as . Every positive number has two square roots: \sqrt, which is positive, and -\sqrt, which is negative. The two roots can be written more concisely using the ± sign as \plusmn\sqrt. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muḥammad Ibn Mūsā Al-Khwārizmī
Muhammad ( ar, مُحَمَّد; 570 – 8 June 632 CE) was an Arab religious, social, and political leader and the founder of Islam. According to Islamic doctrine, he was a prophet divinely inspired to preach and confirm the monotheistic teachings of Adam, Abraham, Moses, Jesus, and other prophets. He is believed to be the Seal of the Prophets within Islam. Muhammad united Arabia into a single Muslim polity, with the Quran as well as his teachings and practices forming the basis of Islamic religious belief. Muhammad was born approximately 570CE in Mecca. He was the son of Abdullah ibn Abd al-Muttalib and Amina bint Wahb. His father Abdullah was the son of Quraysh tribal leader Abd al-Muttalib ibn Hashim, and he died a few months before Muhammad's birth. His mother Amina died when he was six, leaving Muhammad an orphan. He was raised under the care of his grandfather, Abd al-Muttalib, and paternal uncle, Abu Talib. In later years, he would periodically seclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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