New in MathWorld -- April 2006
Sunday April 30, 2006
Saturday April 29, 2006
- 120-Cell (modified)
- 16-Cell (modified)
- 24-Cell (modified)
- 600-Cell (modified)
- Central Trinomial Coefficient (modified)
- Integral Graph (modified)
- Pentatope (modified)
- Quartic Graph (modified)
- Quartic Symmetric Graph (modified)
- Regular Graph (modified)
- Symmetric Graph (modified)
- Tesseract (modified)
Friday April 28, 2006
- Algebraic Number (modified)
- Fibonacci n-Step Number (modified)
- Gauss Map (modified)
- Heptanacci Constant
- Hexanacci Constant
- Logistic Map (modified)
- Minimum Spanning Tree (modified)
- Pentanacci Constant
- Perfect Graph (modified)
- Traveling Salesman Problem (modified)
Thursday April 27, 2006
- Algebraic Number (modified)
- Associative Array
- Gauss Map (modified)
- Heptanacci Number
- Hexanacci Number
- Hoyle's Social Network Theorem
- Integer Sequence Primes (modified)
- Milliard (modified)
- Pentanacci Number
- Self-Recursion (modified)
- Square-Triangle Theorem
- Tree Searching (modified)
Wednesday April 26, 2006
- Billion (modified)
- Dedekind Eta Function (modified)
- Feit-Thompson Conjecture (modified)
- Gauss's Test (modified)
- Indeterminate Problem (modified)
- Integer Sequence Primes (modified)
- Khinchin's Constant (modified)
- Milliard (modified)
- Singular Value Decomposition (modified)
- Somos Sequence (modified)
- Total Graph (modified)
- Urquhart's Theorem
- Wheel Graph (modified)
Tuesday April 25, 2006
- Integer Sequence Primes (modified)
- Tribonacci Number (modified)
Monday April 24, 2006
- Dilogarithm (modified)
- Integer Sequence Primes (modified)
- Khinchin's Constant (modified)
- Trilogarithm (modified)
Sunday April 23, 2006
- Alternating Factorial (modified)
- Barbier Infinite Word
- Bell Number (modified)
- Bernoulli Number (modified)
- Consecutive Number Sequences (modified)
- e-Prime (modified)
- Euler Number (modified)
- Furstenberg's Theorem
- Harmonic Number (modified)
- Integer Sequence Primes (modified)
- Left Factorial (modified)
- Natural Logarithm (modified)
- Natural Logarithm of 2 (modified)
- Padovan Sequence (modified)
- Pell Number (modified)
- Perrin Sequence (modified)
- Phi-Prime (modified)
- Pi-Prime (modified)
- Primefree Sequence (modified)
- Smarandache-Wellin Number (modified)
- Tetranacci Number (modified)
- Tribonacci Number (modified)
Saturday April 22, 2006
- Bifoliate (modified)
- Bifolium (modified)
- Butterfly Curve (modified)
- Cayley's Sextic (modified)
- Cochleoid (modified)
- Conchoid of de Sluze (modified)
- Cycloid of Ceva (modified)
- Egyptian Fraction (modified)
- Eight Curve (modified)
- Heart Curve (modified)
Friday April 21, 2006
- Algebraic Number (modified)
- Cranioid (modified)
- Kolakoski Sequence (modified)
- Lieb's Square Ice Constant
- Residual Entropy for Square Ice
- Singular Value Decomposition (modified)
- Six-Vertex Entropy Constant
- Square Ice Constant
- Twenty-Vertex Entropy Constant
Thursday April 20, 2006
- Bertelsen's Number (modified)
- Content (modified)
- Dedekind Eta Function (modified)
- Feit-Thompson Conjecture (modified)
- Half (modified)
- Harmonic Analysis
- Logistic Map (modified)
- Neville's Algorithm (modified)
- Pi Formulas (modified)
- Prime Counting Function (modified)
- Primitive Part (modified)
- Quarter (modified)
- Riemann Zeta Function (modified)
- Series Multisection (modified)
- Sine (modified)
- Totient Constant
- Trapezoid (modified)
Wednesday April 19, 2006
- Carefree Constant
- Carefree Couple (modified)
- Eight Curve (modified)
- Legendre's Conjecture (modified)
- Nonagon
- Prime Products (modified)
- Regular Decagon
- Regular Dodecagon
- Regular Hendecagon
- Regular Heptagon
- Regular Hexagon
- Regular Nonagon
- Regular Octagon
- Regular Pentagon
- Regular Polygon (modified)
- Regular Tetradecagon
- Regular Tridecagon
- Regular Undecagon
- Strongly Carefree Constant
- Totient Summatory Function (modified)
Tuesday April 18, 2006
- Edge-Graceful Graph (modified)
- Euler-Mascheroni Constant Approximations (modified)
- Hurwitz Zeta Function (modified)
- Infinite Product (modified)
- Legendre's Conjecture
- Motzkin Number (modified)
- Murata's Constant
- Odd Perfect Number (modified)
- Primorial (modified)
- Self-Recursion (modified)
- Sinc Function (modified)
- Synthetic Division
Monday April 17, 2006
- Algebraic Number (modified)
- Embree-Trefethen Constant
- Engel Expansion (modified)
- Golden Ratio (modified)
- Golden Ratio Conjugate (modified)
- Infinite Product (modified)
- Jacobi Theta Functions (modified)
- Pierce Expansion (modified)
- Quadratic Class Number Constant
- Random Fibonacci Sequence (modified)
- Suborder Function (modified)
- Superellipse (modified)
- Transcendental Number (modified)
- van Kampen's Theorem (modified)
Sunday April 16, 2006
Friday April 14, 2006
- Alternated Egyptian Product
- Beta Expansion
- Block Matrix (modified)
- Discrete Logarithm (modified)
- Disjunctive Syllogism
- Egyptian Product
- Engel Expansion (modified)
- Fibonacci Factorial Constant
- First Category
- Hyperbolic Sine (modified)
- Infinite Product (modified)
- Komornik-Loreti Constant
- Magata's Constant
- Meager Set
- Natural Logarithm of 2 (modified)
- Orthomorphism
- Palindromic Prime (modified)
- Pi (modified)
- Pythagoras's Constant (modified)
- q-Development
- q-Expansion
- Residual Set
- Supersingular Prime (modified)
- t-Design
- Transcendental Number (modified)
Thursday April 13, 2006
- Conjugate Gradient Method (modified)
- Discrete Logarithm (modified)
- Eight Curve (modified)
- Infinite Product (modified)
- Parallel Computing
- Rule 126
- Rule 150 (modified)
- Rule 158
- Rule 188
- Rule 190
- Rule 220
- Rule 222
- Rule 50 (modified)
- Rule 94 (modified)
- Sierpiński Sieve (modified)
Wednesday April 12, 2006
Tuesday April 11, 2006
- ArrayFlatten
- Bernoulli Polynomial (modified)
- Content (modified)
- Earls Sequence (modified)
- Ellipsoid (modified)
- FactorTermsList
- Hundred-Dollar, Hundred-Digit Challenge Problems (modified)
- Indefinite Integral (modified)
- Liouville's Constant (modified)
- Logistic Function
- Normal Equation (modified)
- Pi Digits (modified)
- Primitive Part
- Rule 102 (modified)
- Rule 110 (modified)
- Sigmoid Function (modified)
- Solid of Revolution (modified)
- Torispherical Dome (modified)
- Vault (modified)
Monday April 10, 2006
- Baum-Sweet Sequence (modified)
- Bell Polynomial (modified)
- Cantor Set (modified)
- Circular Sector (modified)
- Complementary Bell Number
- Delannoy Number (modified)
- Discrete Logarithm (modified)
- Dragon Curve (modified)
- Feigenbaum Constant Approximations (modified)
- Geometric Centroid (modified)
- Hoffman-Singleton Graph (modified)
- Integer Sequence Primes (modified)
- Isosceles Triangle (modified)
- Mephisto Waltz Sequence (modified)
- Precedence
- Pyramid (modified)
- Rabbit Sequence (modified)
- Seed (modified)
- Sinc Function (modified)
- Thue Sequence (modified)
- Uppuluri-Carpenter Number
Sunday April 9, 2006
- Box Fractal (modified)
- Cantor Dust (modified)
- Cantor Set (modified)
- Cantor Square Fractal (modified)
- Haferman Carpet
- Mephisto Waltz Sequence (modified)
- Overlapfree Word (modified)
- Reverend Back's Abbey Floor
- Self-Recursion (modified)
- Sierpiński Carpet (modified)
- Thue-Morse Sequence (modified)
Saturday April 8, 2006
- Baum-Sweet Sequence
- Cluster Analysis (modified)
- Dragon Curve (modified)
- i (modified)
- Imaginary Number (modified)
- Integer Sequence Primes (modified)
- Mephisto Waltz Sequence
- Near-Square Number
- Phi-Prime
- Pi (modified)
- Prime Arithmetic Progression (modified)
- Pursuit Curve (modified)
- Regular Paperfolding Sequence
- Rule 110 (modified)
- Rule 150 (modified)
- Rule 250 (modified)
- Rule 30 (modified)
- Rule 50 (modified)
- Rule 60 (modified)
- Rule 90 (modified)
- Skewes Number (modified)
- Ternary (modified)
- Thue-Morse Sequence (modified)
Friday April 7, 2006
- Amicable Pair (modified)
- Central Binomial Coefficient (modified)
- Central Trinomial Coefficient (modified)
- Confluent (modified)
- Critical Pair (modified)
- Cuboctahedron (modified)
- Dragon Curve (modified)
- Genetic Algorithm (modified)
- Integer Sequence Primes (modified)
- Lucas Polynomial Sequence (modified)
- Perfect Power (modified)
- Power (modified)
- Prime-Generating Polynomial (modified)
Thursday April 6, 2006
- Arbelos (modified)
- Bimagic Square (modified)
- Contour Integral (modified)
- Definite Integral (modified)
- Edge-Induced Subgraph
- Heegner Number (modified)
- Homogeneous Ordinary Differential Equation (modified)
- Invariant Manifold (modified)
- Isoscelizer (modified)
- Lucky Number (modified)
- Lucky Number of Euler (modified)
- Magic Cube (modified)
- Multiplication Magic Square (modified)
- Non-Abelian Group (modified)
- Orthodiagonal Quadrangle
- Panmagic Square (modified)
- Pi Approximations (modified)
- Pi Formulas (modified)
- Prime Arithmetic Progression (modified)
- q-Integral (modified)
- Strong Pseudoprime (modified)
- Ternary (modified)
Wednesday April 5, 2006
- Absolute Value (modified)
- Complementary Angles (modified)
- Contract
- Derivative (modified)
- Edge Contraction (modified)
- First de Villiers Point
- Hinge Theorem
- Prime-Generating Polynomial (modified)
- p-Series (modified)
- Reflex Angle (modified)
- Riemann Zeta Function (modified)
- Second de Villiers Point
- Supplementary Angles (modified)
- Vertex Contraction (modified)
Tuesday April 4, 2006
- Actuarial Science (modified)
- Angle (modified)
- Bell Number (modified)
- Cluster Analysis (modified)
- Combinatorics (modified)
- Critical Line (modified)
- Eversion (modified)
- Full Angle (modified)
- Minimum Spanning Tree (modified)
- Monty Hall Problem (modified)
- Nash Equilibrium (modified)
- Near-Square Prime (modified)
- Power (modified)
- Prime Number (modified)
- Prisoner's Dilemma (modified)
- SIR Model (modified)
- Sphere Eversion (modified)
- Spirograph (modified)
- Straight Angle (modified)
- Sudoku (modified)
Monday April 3, 2006
- Indefinite Integral (modified)
Sunday April 2, 2006
- Associahedron (modified)
- Bott-Taubes Polytope
- Cyclohedron
- Decimal Expansion (modified)
- Multiplication (modified)
- Permutohedron
- Regular Number (modified)
Saturday April 1, 2006
- Beast Number (modified)
- Bickart Points (modified)
- Digit (modified)
- Fermat Prime (modified)
- Generalized Fermat Number (modified)
- Hyperfunction
- Integer Sequence Primes (modified)
- Mean (modified)
- Pi-Prime (modified)
- Revrepfigit Number
- Sudoku (modified)
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