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"Clavis Mathematicae," which translates to "The Key to Mathematics," is a work written by the mathematician and philosopher John Wallis in the 17th century. First published in 1657, it serves as a comprehensive exposition of mathematical concepts and forms a significant part of the history of mathematics. In this text, Wallis aimed to provide a systematic approach to mathematics, including various branches such as arithmetic, geometry, algebra, and calculus.

The "Code of the Quipu" refers to a system used by the Inca civilization for record-keeping and communication. The quipu (or khipu) is a collection of colored strings or cords that are knotted in various ways to convey information. Each knot and its color could represent different types of data, such as numerical values, dates, or even categorical information about resources, populations, or tribute.

"Complexities: Women in Mathematics" is a documentary film that explores the experiences and contributions of women in the field of mathematics. The film highlights the challenges that women mathematicians face, including issues related to gender bias, representation, and the barriers to entry and advancement in a traditionally male-dominated field. The documentary features interviews with various female mathematicians who share their personal stories, insights, and achievements.

"Concepts of Modern Mathematics" typically refers to a framework or collection of ideas that encompass various areas of mathematics as understood in the contemporary context. While the specific title may refer to a book or course, the concepts within modern mathematics often include several key themes: 1. **Abstractness and Generalization**: Modern mathematics frequently emphasizes abstract concepts and structures, moving away from concrete and numerical examples. This includes the use of set theory, group theory, and topology.

"Convex Polyhedra" is a significant mathematical book authored by G. B. F. (George B. F.) H. R. (Herman R.) A. (Alfred) Schleinck and F. G. (Frank G.) L. (Lothar) Schenker, originally published in 1970.

"Crocheting Adventures with Hyperbolic Planes" is a book by Daina Taimina that explores the fascinating intersection of mathematics and art through the medium of crochet. The book specifically focuses on hyperbolic geometry, a non-Euclidean geometric concept where, unlike flat (Euclidean) plane geometry, the parallel postulate does not hold.

"De Beghinselen der Weeghconst" (or "The Principles of Weighing") is a work written by the Dutch mathematician and engineer Simon Stevin in the late 16th century, specifically published in 1586. In this book, Stevin discusses the principles of mechanics, particularly focusing on the concepts of weights and measures. It is notable for introducing decimal notation to the world, which significantly influenced mathematics and science by making calculations more straightforward and efficient.

"De arte supputandi" is a Latin phrase that translates to "On the Art of Counting" or "On the Art of Calculation." It is often associated with works concerning arithmetic and mathematics, particularly in the context of teaching or explaining methods of numerical computation. One of the notable historical figures connected to this phrase is the 15th-century mathematician Johann Müller, commonly known as Regiomontanus, who wrote on various mathematical subjects, including arithmetic and astronomy.

"De quinque corporibus regularibus" is a Latin phrase that translates to "On the Five Regular Bodies." It refers to a treatise attributed to the ancient Greek philosopher Plato that discusses the five Platonic solids, which are regular, convex polyhedra. These solids are: 1. Tetrahedron (4 faces, all triangles) 2. Cube (6 faces, all squares) 3. Octahedron (8 faces, all triangles) 4.

Descriptive Complexity is a branch of computational complexity theory that focuses on characterizing complexity classes in terms of the expressiveness of logical languages. Instead of measuring complexity based purely on resource usage (like time or space), descriptive complexity relates the complexity of problems to the types of formulas or logical expressions that can describe them. The central idea behind descriptive complexity is that the resources required to solve a problem can be captured by the types of logical sentences needed to express the problem within a certain logical framework.

"Divine Proportions: Rational Trigonometry to Universal Geometry" is a book authored by Norman J. Wildberger, which presents an alternative approach to traditional trigonometry and geometry. In this work, Wildberger critiques the conventional methods used in these fields and introduces the concept of "Rational Trigonometry." The main premise of Rational Trigonometry is to replace the traditional sine, cosine, and tangent functions with more straightforward geometric concepts based on rational numbers.

"Do Not Erase: Mathematicians and their Chalkboards" is a book that explores the relationship between mathematicians and their work environment, particularly focusing on the chalkboards that many of them use to express their ideas and solve problems. The book combines photographs of mathematicians with images of their chalkboards, showcasing the scribbles, diagrams, and equations that reflect their thought processes and the collaborative nature of mathematics.

"Does God Play Dice?" is a phrase that famously refers to a debate in the field of quantum mechanics regarding the nature of determinism and randomness in the universe. The phrase is often attributed to Albert Einstein, who was skeptical of the inherent randomness that quantum mechanics seems to imply. Einstein believed that the universe was fundamentally deterministic and that the apparent randomness in quantum mechanics was due to a lack of complete knowledge about underlying variables.

"Elements of Dynamic" can refer to various concepts depending on the context in which it is used. However, there are a few possibilities: 1. **Dynamics as a Field of Mechanics**: In physics or engineering, dynamics is the study of forces and their effects on motion. The "elements of dynamic" in this context might refer to fundamental concepts such as force, mass, acceleration, momentum, energy, and their interactions.

The Axiom of Choice (AC) is a significant principle in set theory and has several equivalent formulations and related principles that are considered in the realm of mathematics. Here are some of the prominent equivalents and related statements: 1. **Zorn's Lemma**: This states that if a partially ordered set has the property that every chain (totally ordered subset) has an upper bound, then the entire set has at least one maximal element.

"Euclid and His Modern Rivals" is a book written by the mathematician and philosopher in the early 20th century, Alfred North Whitehead. Published in 1903, the work is known for its critique of the foundational aspects of mathematics, particularly in relation to Euclidean geometry and the developments that followed in modern mathematics.

"Euclides Danicus" refers to the Danish edition of the mathematical work attributed to the ancient Greek mathematician Euclid, primarily known for his work in geometry, notably the "Elements." The term might be used in a specific context, such as a publication, translation, or interpretation of Euclid’s work that has been adapted or edited for a Danish-speaking audience. If it pertains to a specific book, author, or scholarly work, more details would be necessary to provide a precise explanation.

"Finding Ellipses" does not seem to refer to a widely recognized concept, book, or specific topic based on the information available up to October 2023. It may be a phrase that describes a mathematical concept related to identifying or analyzing ellipses in geometry, or it could be the title of a work, project, or initiative that emerged after that date.

"Geometry From Africa" typically refers to the study and exploration of geometric concepts and principles as they relate to African cultures and histories. This can include the analysis of geometric patterns, designs, and structures found in traditional African art, textiles, architecture, and crafts. These geometric patterns are often deeply embedded in the cultural, spiritual, and social practices of various African communities.

"Gradshteyn and Ryzhik" refers to the book "Table of Integrals, Series, and Products," authored by I.S. Gradshteyn and I.M. Ryzhik. This comprehensive reference work, first published in 1943, is widely regarded in mathematics, physics, engineering, and other scientific disciplines for its extensive collection of mathematical formulas, integral tables, series expansions, and other related mathematical functions.