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Pseudomathematics, or mathematical crankery, is a mathematics-like activity that does not adhere to the framework of rigor of formal mathematical practice. Common areas of pseudomathematics are solutions of problems proved to be unsolvable or recognized as extremely hard by experts, as well as attempts to apply mathematics to non-quantifiable ...
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However, this book is the first to focus on mathematical crankery as a whole. [1] The book consists of 57 essays, [2] loosely organized by the most common topics in mathematics for cranks to focus their attention on. [1] The "top ten" of these topics, as listed by reviewer Ian Stewart, are, in order: squaring the circle, angle trisection,
In mathematical analysis a pseudo-differential operator is an extension of the concept of differential operator. Pseudo-differential operators are used extensively in the theory of partial differential equations and quantum field theory, e.g. in mathematical models that include ultrametric pseudo-differential equations in a non-Archimedean space.
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Conway's construction was introduced in Donald Knuth's 1974 book Surreal Numbers: How Two Ex-Students Turned On to Pure Mathematics and Found Total Happiness. The surreals share many properties with the reals, including the usual arithmetic operations (addition, subtraction, multiplication, and division); as such, they form an ordered field .
"Pseudo-mathematics and financial charlatanism: The effects of backtest overfitting on out-of-sample performance". Notices of the AMS. 61 (5): 458– 471. doi: 10.1090/noti1105. with Jonathan Borwein: Mathematics by experiment: Plausible reasoning in the 21st century, A. K. Peters 2004, 2008 (with accompanying CD Experiments in Mathematics, 2006)
In antiquity, the text was called The Book About the Origin of the Blessed Mary and the Childhood of the Savior. [1] Pseudo-Matthew is one of a genre of " Infancy gospels " that seek to fill out the details of the life of Jesus of Nazareth up to the age of 12, which are briefly given in the Gospels of Matthew and Luke .