Etymologie, Étymologie, Etymology
US Vereinigte Staaten von Amerika, les États-Unis d'Amérique, The United States of America (USA)
Mathematik, Mathématiques, Mathematics
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about - math
(E?)(L?) http://math.about.com/
att - The On-Line Encyclopedia of Integer Sequences (OEIS)
Zahlenfolgen-Datenbank
(E?)(L1) http://www.research.att.com/~njas/
(E?)(L1) http://www.research.att.com/~njas/sequences/
(E?)(L1) http://www.research.att.com/cgi-bin/access.cgi/as/njas/sequences/
To look up a number sequence in the On-Line Encyclopedia of Integer Sequences, enter it here and click "Submit":
(E?)(L1) http://www.research.att.com/cgi-bin/access.cgi/as/njas/sequences/eisA.cgi?Anum=A000073
(E?)(L1) http://www.mathe-seiten.de/fibonacci.pdf
(E?)(L1) http://www.webopedia.com/TERM/F/Fibonacci_numbers.html
(E?)(L1) http://de.wikipedia.org/wiki/OEIS
Info zur OEIS
(E?)(L?) http://www.cs.uwaterloo.ca/journals/JIS/
Journal of Integer Sequences
(E?)(L?) http://arxiv.org/PS_cache/math/pdf/0207/0207175.pdf
My Favorite Integer Sequences
(E?)(L?) http://www.ams.org/notices/200308/comm-sloane.pdf
The On-Line Encyclopedia of Integer Sequences
Neben der grossen Übersicht an bereits benannten Zahlenfolgen (siehe "Index"), ist die Suchfunktion sehr schön. Man gibt eine Zahlenfolge ein und erhält die definierte Zahlenfolge (sofern es sie gibt) mit vielen Informationen zurück. Diese Seite gefällt meinem Mathematikergehirn.
In der Datenbank befanden sich 2004 ca. 90.000 Zahlenfolgen.
On-Line Encyclopedia of Integer Sequences, enter it here and click "Submit":
My Favorite Integer Sequences - N. J. A. Sloane:
Hard sequences
- Projective planes
- The Poincaré conjecture
- Dedekind's problem
- The Hadamard maximal determinant problem
- Enumerating Hadamard matrices
- The kissing number problem
- Sorting by prefix reversal
Recursive sequences
- Differences = complement
- Golomb's sequence
- Wilson's primeth recurrence
- Recamán's sequences
- The $10,000 sequence
- The Prague clock sequence
- Cayley's mistake
Meanders and stamp-folding
Extremal codes and lattices
Levine's sequence
Arrays of Numbers
Gilbreath's conjecture
The Wythoff array
The Boustrophedon transform
Tchoukaillon solitaire (or Mancala, or Kalahari)
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Benfords Gesetz über führende Ziffern (W3)
(E?)(L1) http://www.educ.ethz.ch/lehrpersonen/mathematik/unterrichtsmaterialien_mat/analyis/benford
Das "Benford-Gesetz" ist benannt nach dem amerikanischen Physiker "Frank Benford".
Autor:
Norbert Hungerbühler
Inhalt
Der amerikanische Physiker "Frank Benford" veröffentlichte 1938 eine erstaunliche Tabelle: Er hatte Daten gesammelt (z.B. die Längen von rund 300 Flüssen) und dann gezählt, wieviele dieser Längen mit der Ziffer 1 beginnen, respektive mit der Ziffer 2, 3 usw. Er stellte fest, dass die Ziffer 1 weit häufiger als führende Ziffer auftritt als etwa die Ziffer 7. Dabei kommt es nicht darauf an, ob die Längen in Meilen oder Kilometern gemessen werden. Benfords Tabelle zeigte dasselbe Phänomen nicht nur bei Flusslängen, sondern auch bei Auflagen von Zeitungen, Einwohnerzahlen von Städten, Halbwertszeiten radioaktiver Isotope, Fibonacci-Zahlen usw.
Der Artikel handelt davon, wie diese Gesetzmässigkeit entdeckt wurde, wie die Verteilung der Häufigkeiten der führenden Ziffern im Benfordschen Gesetz genau lautet, für welche Datensätze das Gesetz gilt und warum es gilt, und wie das Benfordsche Gesetz zur Aufdeckung von Manipulationen an Datensätzen verwendet wird. Hierzu werden empirische, deterministische und probabilistische Ansätze betrachtet.
(E?)(L1) http://www.educ.ethz.ch/lehrpersonen/mathematik/unterrichtsmaterialien_mat/analyis/benford/Benford_Fuehrende_Ziffern.pdf
Download
Artikel (PDF, 814 kB)
Bernstein constant (W3)
Bernstein's Constant
(E?)(L?) http://pi.lacim.uqam.ca/piDATA/bernstein.txt
(E?)(L?) http://mathworld.wolfram.com/BernsteinsConstant.html
.2801694990238691
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classbrain
(E?)(L1) http://www.classbrain.com/artteach/publish/article_48.shtml
Factor calculator to be evaluated for factors and prime factors of a number.
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facade
(E?)(L?) http://www.facade.com/legacy/amiinpi
Where is your Birthday in PI?
Mein Geburtstag steht an der 500.112sten Stelle innerhalb der Zahl PI: I found 080257 starting at this location in PI: 500112
Mathematical Quotations Server (Uni Furman)
Uni Furman
Mathematical Quotations Server
(E?)(L1) http://math.furman.edu/~mwoodard/mquot.html
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jeff560 - Mathematical Words
(E?)(L1) http://jeff560.tripod.com/words15.html
jeff560
Earliest Known Uses of Some Mathematical Symbols and Terms
by Jeff Miller
(E?)(L?) http://jeff560.tripod.com/
Some Web Pages Maintained by Jeff Miller
- Images of Mathematicians on Postage Stamps
- Earliest Known Uses of Some of the Words of Mathematics
- Earliest Uses of Various Mathematical Symbols
- Ambiguously Defined Mathematical Terms at the High School Level
- A Collection of Word Oddities and Trivia
- History of Beckley, W. Va.
- History of American Broadcasting
- History of Broadcasting in West Virginia
- Some History of West Virginia
- Some Tampa-St. Petersburg Radio History
- History of Pasco County, Florida
- Gulf High School
- Woodrow Wilson High School Alumni
- Remembering WDBS at Duke University
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learn-math-playing-games - Mathematik-Spiele
(E?)(L?) http://learn-math-playing-games.com/
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math - Mathematik-Glossar
(E?)(L1) http://www.math.com/
Math.com is dedicated to providing revolutionary ways for students, parents, teachers, and everyone to learn math. (Newsletter)
Select Subject: Basic Math | Everyday Math | Pre-Algebra | Algebra | Geometry | Trigonometry | Statistics | Calculus | Advanced Topics | Others | Math Tutoring
(E?)(L?) http://www.math.com/school/glossary/glossindex.html
- A: absolute value | acute angle | acute triangle | additive identity | additive inverse | adjacent angles | angle | arc | area | associative property of addition | associative property of multiplication | average | axis of symmetry
- B: base | bisect | box and whisker plot
- C: Cartesian coordinates | central angle | chord | circle | circumference | coefficient | collinear | combination | common factor | common multiple | commutative property of addition | commutative property of multiplication | complementary angles | composite number | cone | congruent | constant | coordinate plane | coplanar | counting numbers | counting principle | cross product | cube | cylinder
- D: data | decimal number | degree | denominator | dependent events | diagonal | diameter | difference | digit | distributive property | dividend | divisor
- E: ellipse | equation | equilateral triangle | equivalent equations | equivalent fractions | error of measurement | evaluate | even number | event | exponent | equivalent fractions
- F: factor | factorial | face | formula | fraction | frequency | frequency table
- G: graph | greatest common factor (GCF)
- H: horizontal | hypotenuse
- I: identity property of addition | identity property of multiplication | improper fraction | independent events | inequality | infinity | inscribed angle | inscribed polygon | integers | intercept | intercepted arc | interpolation | intersecting lines | inverse | inverse operations | irrational number | isosceles triangle
- L: least common denominator | least common multiple | like fractions | line | line of symmetry | line segment | locus | logic | lowest terms
- M: mean | median | midpoint | mixed number | mode | multiple | multiplicative identity | multiplicative inverse | mutually exclusive events
- N: natural numbers | negative number | normal | number line | numerator
- O: obtuse angle | obtuse triangle | octagon | odd number | operation | opposites | ordered pair | origin | outcome
- P: parallel | parallelogram | pentagon | percent | perimeter | permutation | perpendicular | pi | plane | point | polygon | polyhedron | positive number | power | prime number | probability | product | proper fraction | proportion | protractor | pyramid | Pythagorean Theorem
- Q: quadrant | quadrilateral | quotient
- R: radius | range | rate | ratio | rational number | ray | real numbers | reciprocal | rectangle | reflection | regular polygon | repeating decimal | rhombus | right angle | right triangle | root | rotation
- S: sample space | scale drawing | scalene triangle | scattergram | scientific notation | set | similar | simplifying | skew lines | slope | solution | sphere | square | square root | statistics | stem and leaf plot | straight angle | supplementary angles | surface area
- T: terminating decimal | translation | transformation | transversal | trapezoid | tree diagram | triangle
- U: unit price
- V: variable | vertex | vertical angles | volume
- W: whole numbers
- X: x-axis | x-intercept
- Y: y-axis | y-intercept
- Z: zero | zero property of multiplication
math-net - Links to the mathematical world
(E?)(L?) http://www.math-net.org/
Math-Net is a global electronic information and communication system for mathematics providing e.g.
- results of mathematical research and development,
- teaching material,
- information about working mathematicians and mathematical institutions
(E?)(L?) http://www.math-net.org/links/show?collection=math
mathacademy
Mathematics-Glossary
(E?)(L1) http://www.mathacademy.com/pr/prime/
(E?)(L1) http://www.mathacademy.com/pr/prime/articles.asp
Neben dem umfassenden Mathematik-Glossar findet man weiterhin die Schwerpunktthemen:
- Cantor's Theorem
- Cantor Set
- Carroll's Paradox
- Conics
- Dandelin's Spheres
- Differentiation Rules
- Fallacies
- Fibonacci Sequence
- Gödel's Theorems
- Greek Alphabet
- Hempel's Ravens Paradox
- Integration Forms
- Irrationality of the Square Root of 2
- Kepler's Laws
- Latin Terms and Phrases
- Limits
- Platonic Solids
- Series
- Sid's Paradox
- Solving Story Problems
- Trig Functions and Identities
- Von Neumann Heirarchy
- Zeno's Paradox of the Tortoise & Achilles
(E?)(L?) http://www.mathacademy.com/pr/minitext/escher
The Mathematical Art of M.C.Escher
Die Mathematik hinter M.C. Eschers Bildern.
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utk - Mathematik-Archiv
Topics in Mathematics
(E?)(L?) http://archives.math.utk.edu/
Teaching materials, software, WWW links organized by Mathematical Topics. Searchable database.
(E?)(L?) http://archives.math.utk.edu/topics/
In these pages, you will find links to various WWW resources on Mathematics. They are organized by topics.
Abstract Algebra | Algebra | Analysis | Applied Mathematics | Arithmetic | Art & Music | Calculus | Cellular Automata | Combinatorics | Complex Analysis | Computational Geometry | Computational Science | Computer Algebra / Cryptology | Genetic Algorithms | Differential Geometry | Discrete Mathematics | Dynamical Systems | Fluid Dynamics | Fourier Analysis & Wavelets | Fractals | Geometry | History of Mathematics | Industrial Mathematics | Linear and Matrix Algebra | Linear & Nonlinear Programming | Logic & Set Theory | Mathematics Education | Mathematical Biology | Miscellaneous | Multivariable Calculus | Nonlinear Dynamics | Number Theory | Numerical Analysis | Ordinary Differential Equations | Partial Differential Equations | Pre-Calculus | Probability Theory | Statistics | Topology | Trigonometry
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worldofnumbers
(E?)(L?) http://www.worldofnumbers.com/
variety of facts and figures; Palindromic Squares
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