The 16th century was a significant period for mathematics in Portugal, marked by the work of several notable mathematicians and the influence of the Portuguese Age of Discovery. Here are some key figures and contributions from that era: 1. **Pedro Nunes (1502-1578)**: Often considered one of the most important Portuguese mathematicians of the 16th century, Nunes made significant contributions to navigation and geometry.
In the 19th century, Portuguese mathematics experienced significant developments, although it was less prominent compared to other European countries. Here are some notable aspects and mathematicians from that period: 1. **Notable Mathematicians**: - **José T. de Andrade (1827-1872)**: A mathematician who contributed to various fields, particularly in geometry.
The Arithmetic Progression Game generally refers to a mathematical game or educational activity designed to help players understand and practice the concept of arithmetic progressions (AP). An arithmetic progression is a sequence of numbers in which the difference between consecutive terms is constant. For example, in the sequence 2, 4, 6, 8, 10, the common difference is 2.
Comtism, also known as COMTism, refers to the belief in the significance of the COMT (Catechol-O-Methyltransferase) gene, which is involved in the breakdown of neurotransmitters such as dopamine, epinephrine, and norepinephrine. Variations in this gene can influence an individual's cognitive function, mood, and response to stress, leading to varying personality traits and behavioral tendencies.
A biased positional game is a type of combinatorial game, often used in game theory, where two players alternate turns and make moves that change the state of the game. The "biased" aspect refers to certain preferences or advantages that one player may have over the other, which can affect the strategy and outcome of the game. These biases can manifest in various ways, such as differing rules for each player, asymmetric starting positions, or unequal resources available to each player.
The Clique game refers to a type of game based on the concept of cliques in graph theory. In a graph, a clique is a subset of vertices such that every two distinct vertices in the subset are adjacent. This means that a clique is a complete subgraph. In the context of a game, the Clique game can involve players trying to identify or form cliques based on specific rules, often involving strategy, negotiation, or deduction.
Hex is a two-player abstract strategy board game that was invented in the early 20th century, particularly credited to mathematician Piet Hein in 1942 and further developed by John Nash in 1948. The game is played on a hexagonal grid, typically in the shape of a diamond, with each player taking turns placing their pieces (usually colored stones or markers) on the board.
Polish Positivism was a philosophical and cultural movement in Poland that emerged in the second half of the 19th century, particularly following the January Uprising of 1863 against Russian rule. It was characterized by an emphasis on scientific reasoning, empirical evidence, and social reform, reflecting broader European trends of positivism, particularly those associated with Auguste Comte.
The Positivist school of criminology emerged in the late 19th to early 20th century as a response to classical criminology, which emphasized free will and rationality as the primary drivers of criminal behavior. Instead, positivism focuses on the idea that criminal behavior is determined by factors outside of an individual’s control, such as biological, psychological, and social influences.
Sextil Pușcariu was a prominent Romanian linguist, philologist, and educator born on March 15, 1877, in the region of Transylvania, and he passed away on April 1, 1948. He is best known for his contributions to the study of the Romanian language and its dialects, as well as his research in the fields of Romanian folk culture and literature.
(15874) 1996 TL66 is an asteroid located in the asteroid belt between Mars and Jupiter. It was discovered on October 6, 1996, and assigned the provisional designation 1996 TL66. The number 15874 indicates that it is the 15,874th asteroid to be assigned a permanent number by the International Astronomical Union (IAU).
(470599) 2008 OG19 is a near-Earth object (NEO) that is classified as an asteroid. It was discovered in 2008 and is part of the Apollo group of asteroids, which have orbits that cross Earth's path. The specific characteristics of 2008 OG19, such as its size, composition, and trajectory, are determined by observations made by astronomers and are subject to updates as new data is collected.
(469372) 2001 QF298 is classified as a trans-Neptunian object (TNO), specifically a centaur. Centaurs are celestial bodies that orbit between the orbits of Jupiter and Neptune. This particular object was discovered in 2001 and is part of the larger population of icy bodies located in the outer Solar System. You can typically find information on its orbital characteristics, size, and any significant studies conducted about it in astronomical databases or publications.
(495603) 2015 AM281 is a designation for a specific near-Earth object (NEO), which is classified as an astroid. The number "495603" is its sequential designation indicating it is the 495,603rd NEO to be cataloged.
(556416) 2014 OE394 is a minor planet or asteroid located in the asteroid belt between Mars and Jupiter. It was discovered on July 19, 2014, and is classified as a member of the Apollo group of asteroids, which are known for their orbits crossing that of Earth.
(523687) 2014 DF143 is a trans-Neptunian object, specifically classified as a further-out object in the Kuiper Belt. Discovered in 2014, it is categorized as a "cubewano," a type of classical Kuiper Belt object that has an orbit that is not significantly affected by the gravitational influence of Neptune.
(523727) 2014 NW65 is a designation for a trans-Neptunian object (TNO) that was discovered in 2014. It is classified as a cubewano, which is a type of icy body located in the Kuiper Belt that does not have significant gravitational influences from Neptune. These objects often have stable orbits and are sometimes referred to as "classical" Kuiper Belt Objects (KBOs).
2014 FE72 is an asteroid that is classified as a near-Earth object (NEO). It was discovered in March 2014 and is part of the Apollo group of asteroids, which have orbits that cross the Earth's orbit. The designation "2014 FE72" indicates the year of its discovery (2014) and the order in which it was discovered in that year (72nd object).
(524435) 2002 CY248 is a trans-Neptunian object (TNO) and a centaur, which is a class of small celestial bodies located in the outer Solar System, often between the orbits of Jupiter and Neptune. This specific object was discovered in 2002 and is known for its properties as a detached object, meaning its orbit does not interact significantly with Neptune.
(55565) 2002 AW197 is a minor planet, specifically an asteroidal body located in the asteroid belt. It was discovered on January 5, 2002. The designation indicates it is the 55,565th numbered asteroid in the sequence of discoveries.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact