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Mathematicians

Often, to completely understand the importance of a mathematical theory, it's essential to know about the person who developed it. This category is where all questions about historically significant mathematicians should be asked.

6,570 Questions

Which mathematicians are associated with the founding of geometry?

Euclid is the founder of Euclidean geometry, which is the most common form of geometry which is known to to the general populace and is based on the (unprovable) axiom there exists one and only one line though a given (distinct) point which is parallel to another given line.

However, there are other geometries which reject the Euclid's parallel postulate, such as Riemann geometry, created by the mathematician Riemann. First would be unnamed Egyptians and Babylonians, going back to 2000 BC. When we move to the ancient Greeks, starting around 600 BC we have names: Thales and Pythagoras, and then Eudoxus (around 370 BC). The great philosopher Plato encouraged the study of geometry around the time of Eudoxus. Geometrical proof was established some time earlier than 400 BC.

Euclid came a bit later (around 300 BC). The statement that Euclid founded Euclidean geometry needs interpretation. Euclid wrote his famous Elements, (The Elements of Geometry, in thirteen books) which were so successful that they displaced earlier books of Elements, which have not survived. Euclid made two contributions: * There is evidence that he laid out his own postulates and reworked the basis of the subject. * He collected together results from the people before him is a systematic way, including work by Eudoxus and by the Pythagoreans. The Elements basically make up an advanced textbook reporting on main results from a couple of centuries of previous work. They don't contain everything that was known at the time.

After Euclid comes Archimedes (around 250 BC), who among other things, worked on areas and volumes, and Apollonius (around 210 BC), who worked on conic sections.

[Note: In my country BC is common usage. In yours it may be BCE.]

Who is claudius ptolemy?

Ptolemy believes that the earth is the center of the universe.

When was roulette invented?

The word 'roulette' is derived from the words 'small wheel' in French so it's safe to assume that a Frenchman had something to do with the invention of the game. Blaise Pascal is credited with the invention of a primitive roulette game in his quest for a perpetual motion machine in the 17th century. However, the roulette wheel itself is believed to be a combination of a number of Old English, French and Italian games that already existed. The earliest description of the roulette wheel can be found in a French novel 'La Roulette , Ou Le Jour' and this is in 1796. However the earliest reference to the game can be found in 1758 in New France (now Quebec) which actually bans a gambling game called roulette. The European form of roulette (1 green 0 rather than the 0 and 00 in the 'American' version) has been traced back to the German town of Homburg. It is still credited to two Frenchmen though, Francois and Louis Blanc. The single 0 was introduced to increase the odds in the favour of the gambler and hence make it a more attractive option the 00 style of the game. There were even roulette wheels in America that had a 0 and 00 and an American eagle. And when the ball landed in one of these sections the house claimed all bets on the table. When the Germans (one of the largest empires in Europe at the time) outlawed gambling in the 1860's gambling and the roulette wheel moved to the south of France and took hold in Monte Carlo. Monte Carlo quickly became a place where the elite and the rich of the time came to gamble and is still synonymous with the casino today. Meanwhile, at this time, roulette was travelling north through the USA beginning in New Orleans. It was here, because of cheating both by gamblers and operators that roulette became a table top game and it was also here that the roulette wheel as we know it today became standardised.

How much is a 1944 barber dime?

Please check again and post a new question. The last Barber dimes were struck in 1916.

What did Louis Cauchy invent?

Cauchy was the first mathematician who developed definitions and rules for mathematics. He introduced the definitions of the integral and rules for series convergence. There are sixteen concepts and theorems named after him.

What is the origin of the plaid?

Tartan plaid is simply a pattern of thread repeated in both the breadth and width of the finished fabric, the woof and the warp. A true plaid, then, has the same pattern when you rotate it 90 degrees. But tartan plaid is also something more, one of the few surviving cultural reminders of the independent Scottish nation. In fact, the tartan is so fundamental to the Scottish identity that English authorities banned wearing plaid after the Scottish rebellion of 1746. Many Americans can trace their ancestry to Scots who were sentenced to seven years labor in the colonies for wearing their tartan. As early as the Roman conquest of Britain in Julius Ceaser's day, the Celts of Scotland and Ireland wore primitive tartans. At the time, tartan referred to a style of weaving fabric that makes a fine, diagonal texture. Look at your jeans or a twill shirt; you'll see the fine diagonal pattern. This strong weave is made by sewing the thread over two, under two instead of the simpler over one, under one.

During the Middle Ages, Scottish weavers began using simple, natural dyes to create plaid designs in their tartans. There was little standardization of patterns, with weavers creating a new design for every bolt of fabric. But regional styles began to develop, based on local tastes and the availability of natural pigments. Eventually, clans began to wear a more standardized set of plaids, but there was still much variation among tartans. In fact, Highland warriors identified their clan affiliation mainly by devices on their hats, not the pattern of their kilts.

What is metaphysics?

Metaphysics is the philosophical study of the nature of our existence. Modern scientists consider this area as opposite to the scientific method.

Metaphysics is the collective processes that are beyond basic physics principles. For example, the study of Oncology, which peaks questions at perception and the state of being.

It is also used as a word to describe using unseen forces to effect a seemingly unrelated event, person, area, etc. The higher echelon of magick, where one understands why this leads to that (some answers found through studying the worlds state of being) as opposed to many systems of magick which send practitioners blind to delve into forces unseen.

How do you know if a series converges by the intergral test?

When you take the integral using the series as integrand, it converges if the integral worked out to be a number. If it's infinte, the series diverge.

How many brothers and sisters did Hitler have?

Hitler had 4 siblings who died in childhood, 3 brothers, Gustav, Edmund and Otto, and a sister, Ida. He had one other sister who survived childhood, Paula. He also had a stepbrother, Alois and a step-sister, Angela.

What is Miller's Theorem?

Milller's Theorem is used to simplify a circuit for circuit analysis. Instead of one impedance, which connectes two non-grounded nodes, Miller's Theorem allows this impedance to be broken down into two parallel impedances. One impedance can be seen as Z/(1-A) and the other impedance can be simplified to Z/(1-(1/A)). In this case, Z was the value of the original impedance, and A is the gain of the amplifier being analyzed.

What contributions did von newman have on computer technology?

Von Newmann was a Mathmatician who worked for the American military, his contribution to the computer field was the BIT as the unit of measurement for computer memory.

Did Emmy noether ever have kids?

Emmy Noether did not have any children. She dedicated her life to mathematics and research, often prioritizing her academic work over personal relationships. Noether remained single throughout her life and focused on her groundbreaking contributions to algebra and theoretical physics.

What was Aristotle's IQ?

Seeing as Aristotle lived about 2200 years before the first IQ tests were developed, I guess we'll never know. I think it's safe to say that he was pretty intelligent though and wouldn't need a score on an IQ test to prove it!

What were Euclid's contributions?

Euclid, often referred to as the "Father of Geometry," made significant contributions through his work "Elements," where he systematically compiled and organized the knowledge of geometry of his time. This 13-book series laid the foundation for modern mathematics by introducing axioms, definitions, and theorems, and by demonstrating how to derive complex geometric concepts from simple principles. His logical approach and method of deductive reasoning influenced not only mathematics but also the development of formal logic and scientific thinking. Euclid's work remained a primary textbook for teaching mathematics for many centuries.