Teacher's Resources: Math - last updated on 02/06/06.

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e^pi + 1 = 0

Click once on any underlined text to go to that site. (Last updated 05/25/03):
The Abel Prise
Arapahulian Rope Computer

Big Math Attack
The Chinese Remainder Theorem - from Alexander Bogomolny at Cut-the-Knot
Complexity Zoo
Cornell Theory Center - Math Gateway
Handbook of Applied Cryptography - downloadable copy
Fields Medal Winners
Combinational GameTheory - from David Eppstein
Geometry - the online learning center
Geometry Formulas and Facts
Geometry Center Graphics Archives
GeometryJunkyard - from David Eppstein
Gliders in Life-Like Cellular Automata
Puzzles Golden gaskets: variations on the Sierpinski sieve
HAKMEM - a variety of results developed by the Artificial Intelligence Laboratory at M.I.T.under the aegis of A. R. P. A.
Hilbert Functions and the Chinese Remainder Theorem
Integer Sequences - an on-line encyclopedia
KdV Institute - math links
Lawrence Hall of Science - math and science education links
Los Alamos National Laboratory - math e-print archive
Loy: Jim Loy's Math Page
MacTutor History of Math
Virtual Math Lab - from KCOS TV
Math Spans All Dimensions, from the Joint Policy Board for Mathematics
MathJournals - from Math on the Web
Mathematical Associationof America
The Mathematical Atlas - a gateway to modern mathematics
The Math Forum
American Mathematical Society - math pre-print server
Elsevier math pre-print server
Mathematics Websites
Websites for Mixed Integer Programming - from Harvey J. Greenberg
Number Theory - Hacks - from David Eppstein Peaucellier Inversor
Peaucellier Linkage
The Poincaré Conjecture
PolicyAnalysisMarket - an online betting parlor for the likelyhood of dramatic events such as assassinations, nuclear strikes and coup de etats. Initiated by John Poindexter to help assess risks by allowing those with access to rumors to express their degree of confidence in those rumors by betting on potential events.
Puzzles Dot Patterns and Sierpinski Gasket

GLOSSARY TERMS

Abacus, Number Systems, Abelian group, commutative, Absolute Geometry, Absolute value, Addition, Addition Formula for Sine, Adjacency, Affine Geometry, Affine Space, Affine Transformation, Alexander the Great, Algebraic numbers, Algorithm, Aliquot part, Alternating group, Altitude, Airline Problem, Analog gadgets, Angle Bisectors, Angle Trisection, Angular distance, Annulus, Old Japanese Theorem, Antichain, Anticommutativity, Arbelos, Archimedes of Syracuse, Archimedes' Method, Arithmetic mean, Arithmetic-Geometric Mean Inequality, Arithmetic Operations in Various Bases, Arithmetic Paradoxes, Arithmetic series, ASA, Associativity, Associates, Asteroid, Attractive point, Axiom of Choice, Axiomatic completeness, Apollonius problem, Baffling Prediction, Bankoff's Conundrum, Barycentric coordinates, 3 Jugs Problem, 3 Glasses Problem in Barycentric Coordinates, Barycentric coordinates and Geometric Probability, Base Converter, Algorithms for Base Conversion, Conversion of Fractions in Various Bases, Bear cubs problem, Beatty Sequences, Benford's Law, Bertrand's Paradox, Bicolor Towers of Hanoi, Bilateral Diagram, Binary Encoding with the Stern-Brocot tree, Binary Euclid's Algorithm, Binary System, Binet's Formula, Binomial Coefficient, Binomial Theorem, Bipartite graph, Bisecting arcs, Bisecting a shape, Bitwise shift, Bitwise boolean operations, Blithe 12 puzzle, Bolzano Theorem, Bolzano Theorem, Bogus Nim, Bound, Boundary point, Bounded Distance, Braids Theory, Theory of Braids, Breaking Chocolate Bars, Brouwer's Fixed Point Theorem, Buffon's Needle Problem, Byzantine Basketball, Cake cutting, Calendar Magic, Canter, Cantor Function, Cantor set, Cantor set of positive measure, Cardinal, Cardioid, Carnot's Theorem, Cauchy's inequality, Cauchy Integral Formula, Cauchy's limit, Cauchy sequence, Cayley's Theorem, Center Circles, Centipede, Central Limit Theorem, Centroid, Ceva's Theorem, Ceva's Theorem and Fibonacci Bamboozlement, Menelaus theorem, Cevian, Chaos, Characteristic Constants of the n-Line, Characteristic function, Checker - jumping, Chinese Remainder Theorem, Circle of Concern, Circle of Influence, Circular Coordinates, Circumcenter, Circumcircle, Circumradius, City-block distance, Clifford's Chain, Clinant, Closed interval, Closed set, Closed walk, Closure, Coincidence, Collinear points, Collage Theorem, Column vector, Combination, Common Notions of Euclid, Commutative group, Commutativity, Compact sets, complex numbers, Complementary sequences, Complete graph, Complete order, Composite number, Composition, Concatenation, Concentric polygons, Concurrent lines, Conditional Probability, Congruence Modulo a Number, Conic Sections, Conjugate coordinates, Conjunction, Connected component, Connected graph, Connected set, Consistency, Constant Chord, Shapes of Constant Width, Constructible Numbers, Construction, Construction with the Compass Only, Content, Continuity, Continued fraction, Continued Fractions on the Stern-Brocot Tree, Continuum, Contraction Mapping Theorem, Convergent, Converse theorem, Convex hull, Convex shape, Convolution, Conway's Circle, Coolidge theorem, Copernicus' Theorem, Coprime, Cosine Rule, Countable sets, Counting: The Beginning of Mathematics, Let Them Count, Covering A Chessboard With Domino, Cross product, Crosscap, Crossover, Cryptarithms, Curve, Cutting pipes, Cycle, Cyclic quadrilaterals, Cycloids, Cyclotomic Equation, Cylinder, Data Structure, de Bruijn cycle, Decimal numeral, Degree of a vertex, Deliberate Ambiguities, Deltahedron, Deltoid, De Moivre's formula, De Moivre numbers, de Morgan's Formulas, Dense set, Descartes' Rule of Signs, Diagonal Count, Diagonal matrix, Diagonal process, Diameter of a triangulation, Difference of two sets, Fun with Digits, Dimensional Analysis, Direct product, Direct sum, Disappearing Lines, Disjunction, Distance, Distance Between Strings, Distance on the sphere, Distance to the Horizon, Distributive Laws, Divide a segment into n equal parts, Divisibility by 3, Divisibility by 7, Divisibility by 9, Divisibility by 11, Divisibility by 81, Divisibility Criteria, Divisor of zero, Dot Patterns and Sierpinski Gasket, Did you know that..., Dot product, Double Factorial, Double Generation Theorem, Double negative, Doubling the Cube, Drawing circles and ellipses, Duality, Duality Principle, Dumb Parrot, Eigenvalue, Eigenvector, Eliminand, Epicycloids, Equation, Equality, Equichordal points, Equivalence Relations, Euclid's Algorithm, Euclid's Game, Euclid's proof of the Pythagoras' Theorem, Euclidean distance, Euler's Characteristic, Euler's Formula, Euler's Function and Congruence Theorem, Euler's Theorem, Euler walk, Even permutation, Even vertex, Extension of Euclid's Algorithm, Evolution of Algebraic Symbolism, Extension Fields, External product, "Extra-geometric" proofs of the Pythagorean Theorem, Extreme, Eye Opener Series, 4 Knights, 4 travellers problem, 4x4 coloring problem, Factorial, Factoring polynomials, Fagnano's problem, Farey Series, Feasible vectors, Fermat's Little Theorem, Fermat Point and Generalizations, Fibonacci sequence, Fibonacci Numbers, Ceva's Theorem and Fibonacci Bamboozlement, Field, Fifteen, Fifth Postulate, Finite Intersection Property, Fish Soup Game, Fixed point, Flipping pancakes, Floor, Folding, Ford's touching circles, Formal Framework, Four 3s, Four 4s, Four 5s, Four Geometric Problems of Antiquity, Fractal, Fractional part, Free group, Frieze Patterns, Frogs and Toads, Frogs and Toads in 2 dimensions, Function, Function spaces, Functional equation, Fundamental Theorem of Algebra, Funny Arithmetic, Galois Extensions, Game Theory, Gaussian coordinates, Gaussian Integers, Generalization in Mathematics, Genetic Algorithms, Geoboard, , Geometric Constructions, Geometric mean, Arithmetic Mean - Geometric Mean Inequality, Geometric series, Sum of the geometric series, Gergonne Point, Josiah Willard Gibbs, Golden section, Googol, Gordius, King of Phrygia, Graph, Graph Theory, Gray codes, Greatest Common Divisor, gcd, Group, Groupoid, Growth, Hamming Distance, Tower of Hanoi, Happy 8 puzzle, Harmonic Mean, Hausdorff Distance, Formula for Height in a triangle, Heredity, Heron's Formula, Hilbert Functions, Hex numbers, Hole, Homogeneous Coordinates, Homogeneous Functions, Hour glass timing, permutation, Human calculators, Hypercube, Hypocycloids, harmonic triangle, Ideal elements, Ideal subrings, Idempotent law, Identical Twins Puzzle, Identity, Identity matrix, iff, Imaginary numbers, Impartial game, Implication, Impossible page, Incidence matrix, Incenter, Incircle, Inradius, Inclusion-Exclusion principle, Index, Index Lemma, Induction, Infinite Products, Infinite Sums, Infinitesimal, Infinitude of Primes, Infinity, Infinity and Probability, Inner product, Incenter, Inradius, Inscribed Angles, Integer, Integer Iterations on a Circle, Integral Domain, Integration in Spherical Coordinates, Interest Calculations, Intermediate Value Theorem, Internal point, Intersection of sets, Inventor's Paradox, Invert the Divisor and Multiply, Inversion, Irrational numbers, Isogonal lines, Isogonal conjugates, Isolated point, Isotomic lines, Isoperimetric Inequality, Isoperimetric Theorem,a variation on Isoperimetric Theorem, Iterative process, Jam, Jordan Curve Theorem, a legend and a problem of Josephus Flavius, Julia sets, Jump, Kantor's Circle, Klein Bottle, Knots, Koch's snowflake, Konigsberg, Kronecker's symbol, Labeling of a graph, Latin Squares, Lattice, Law of Cosines, Law of Sines ,Least Common Multiple, lcm, Left-handedness, Legendre's Lemma, Lemoine point, Levenshtein Distance, Lewis Carroll's problem, Lewis Carroll's Game of Logic, Lexicographic order, Complex numbers, Permutations, Lindemann's Theorem, Linear combination, Linear function, Linear Programming, Linear Space, Linear Transformation, Liouville's Theorem, Listing all permutations, Locus, Logo of mine, Logistic equation, Long Runs of Composite Numbers, Looking your best, Loop, Looping Chips, Lowest Terms, Lucas' Theorem, Lucky 7 puzzle, Leibnitz triangle, mathematical terms, terms of mathematics, Maclaurin series, Magic Squares game, Mandelbrot and Julia sets, Iterations and the Mandelbrot Set, Manifesto, Marriage Theorem, MasterMind, Mathematical Induction, Matrix, A Matter of Age, Maximal Chain, Maximum Modulus Theorem, Mean Value Theorem, Mechanical Proof of the Pythagorean Theorem, Medial triangle, Mediant fraction, Mediant fraction, Dots and Fractions, Median, Menelaus Theorem, Merlin's Magic Squares, Metric completeness, Metric Space, Mex rule, Midline (in a triangle), Millipede, Minimax Principle, Minkowski addition, Minkowski subtraction, Miquel's Point, Model, Modulo Arithmetic, Modular Arithmetic, Modus ponens, Modus tollens, Möbius Strip, Moebius strip, Moebius band, Möbius Transformations, Monic polynomial, Monty Hall Dilemma, Morley's Miracle, Multiplication, Mutation, Mutually prime integers, My logo, 9-Point Circle, Nine point cirle, Nagel point, Napier Bones, Napoleon's Theorem, Napoleon's Theorem, a generalization, Napoleon's Theorem by Plane Tesselation, Napoleon's Theorem, complex variables, circle incidence, Near, Negative Powers, Neighborhood, Nim, Nim-sum, Nine dots problem, n-Line, Characteristic Constants of the n-Line, Non-Eclidean Geometries, Normal topological space, Northcott's game, Nothing is something, Nowhere dense set, N-position, Number Mosaics, Number System With Base 36, Numbers, Numeral, Neuberg's Theorem, Obtuse angle, 1-1 correspondence, Oddball Problem, Odd permutation, Odd vertex, One-sided surfaces, Open interval, Open sets, Open walk, Operations on Fractions, Optical Illusion, Orbits, Origami, Orthic triangle, Orthocenter, Orthogonal latin squares, Orthogonality, problem solving, numbers, Pace, Packing shapes in a plane, Paper Folding, Paper strip activities, Pappus' Theorem, Paradox, Paradox of Tristram Shandy, Parallelogram rule, Parallel Postulate, Parity, Parity of a node on a graph, Partial order law, Partition of point sets in a plane, Partitioning a Circle, Partizan game, Pascal Triangle and Sierpinski Gasket, Pascal Triangle and the Tower of Hanoi, Peano axioms, Peano Curves, Peaucellier Linkage, Pedal Curve, Peg Solitaire, Pencil of lines, Munching on Inscribed Angles, Penosculant, Pentagon, construction of regular Pentagon, Perfect number, Periodic cycle, Permutation, Perpendicular bisector, Pi, Pick's Theorem, Pigeonhole principle, Pivot Theorem, Place Value, Plainim, Planar graph, Planar polygon, Plane Filling Curves, Plato's Geometric Numbers: can you better Sam Loyd?, Plus or Minus, Point at infinity, Point in a Square, Point inside a triangle, Polar coordinates, Pole, Polygon, Polygonal number, Positional Number System, P-position, Power of a point with respect to a circle, Prime, Primorial, Principal, Principle of Conservation of Angular Momentum, Principle of Duality, Prisoner's Dilemma, Probability, Probability paradoxes, Projection, Projective Geometry, Projective Plane, Pronk, Proofs Without Words, Proof, Ptolemy's Theorem, Sine, Cosine, and Ptolemy's Theorem, Pure existence proof, Ptolemy's Theorem, Sine, Cosine, and Ptolemy's Theorem, Ptolemy's Theorem implies Pythagoras' Theorem, puz(G), the graph of a puzzle, Puzzles on graphs, Pythagoras' Theorem, Mechanical Proof of the Pythagorean Theorem, "Extra-geometric" proofs of the Pythagorean Theorem, Generalizations of Pythagorean Theorem, Pythagorean triples, Norm of Gaussian integers, Gaussian integers, Divisibilty in Pythagorean Triples, Trinary Tree(s) underlying Primitive Pythagorean Triples, Quadratic Average, Quasigroup, Math Quotations, a Web poll, Radical axis of two circles, Radix, Random Number Generator, Rational approximation, Rational numbers, Ray, Real numbers, Recurrence relations, Reflection, Reflexivity, Regular polygon, Regular polyhedron, Relatively prime integers, Removable singularity, Repelling point, Residue classes, Retinend, Reverse Solitaire, Right-handedness, Rigid motions, Ring, Rolle's Theorem, , Rottary gallop, Rounding numbers, Row vector, Russell's Paradox, 7 Coins Puzzle, Saddle Point, Salinon, Sam Loyd's fifteen, Sam Loyd's Geometric Puzzle, SAS, Scalar, Scalar product, Schlafli formula, Scoring, Self-documenting sentences, Self-dual configuration, Self-reference, Semigroup, Sending scouts into the desert, Separating point sets with a circle, Sequential compactness, Set, Shapes in a lattice, Shapes of constant width, Shift, hip-Dock Theorem, Shredding the torus, Shuttle Puzzle, Sibling node, Sierpinski gasket, Dot Patterns and Sierpinski Gasket, Sierpinski Gasket by Trema Removal, Similarity, Similarity dimension, Simple continued fraction, Simple graph, Simplex, Simpson's paradox, Single formula to express any integer with digits 0-9 each used just once, Slider Puzzles, Sliders, Slope, Solitaire in the Circle, Somos-4 Sequence, Soriteses, Sperner's Labeling, Sperner's Lemma, Sperner's Theorem, Sphere, Splitting piles, Sprague-Grundy function, Square numbers, Squaring a circle, Squares and Circles, Squares, Circles, and Triangles, SSS, Stability, Star Polygons, Stationary point, Steiner's Circle, Steiner's Theorem, Stereographic projection, Stern-Brocot Tree, Binary Encoding with the Stern-Brocot tree, Stewart's theorem, Stretching, Subfactorial, Subgraph, Subgroup, Successor, Sums and Products, Superfactorial, Supergraph, Superposition Principle, Surreal numbers, Syllogism, Modes Ponens, Symmedian, Symmetric difference, Symmetric group, Synthetic division, System of Distinct Representatives, 3 glass puzzle, Tangent to two circles, Tarski-Banach Decompositions, Taylor circle, Taylor series, Ternary number system, Tesseract, The only rational triangle, Thick set, Thin set, Three pancakes problem, Three 3s, Three 4s, Three 5s, Three Circles and Common Tangents, Three circles problem, Toads And Frogs Puzzle, Topological equivalence, Topological Space, Topological transformation, Topology, Torque, Torus, Tower of Hanoi, Sierpinski Gasket and Tower of Hanoi, Bicolor Towers of Hanoi, Toys and Tots problem, Trachoids, Train wheel quandary, Transcendental numbers, Transitive groups, Transitivity in Action, Transpose, Transposition, Transversal, Transverse gallop, Tree, Trefoil knot, Trema, Triangle Inequality, Triangular numbers, Triangulation, Trichotomy, the law of Trichotomy, Trilateral Diagrams, Trilinear Coordinates, Trot, Turn, Turning Turtles, Tweedledum & Tweedledee Principle, Two coins puzzle, Two-squares identity, telescoping series, Uniform convergence, Union of sets, Unique Factorization Theorem, Uniqueness of number 30, Unit element, Unity, unit fraction, Value, VanObel Theorem, Determinants, Barycentric Coordinates, Vector, Vector product, Vector Space, Venn Diagrams, Viewing a Statue, Walk on a graph, Web poll, Weierstrass-Bolzano property, Weierstrass Product Inequality, Weird curves bound normal areas, centipede, Whole number, Whole part function, Wilson's Theorem, Word Problems, Wythoff's Nim, XOR, exclusive OR, Zero, Zipf's Law