New in MathWorld -- November 2005

Wednesday November 30, 2005

Ansatz (modified)
Bernoulli Number (modified)
Double Factorial (modified)
Factorial (modified)
Fermat Number (modified)
Integer Sequence Primes (modified)
Irregular Prime (modified)
Lattice Embedding
Mersenne Number (modified)
Motzkin Number (modified)
Peter-Weyl Theorem
Powerful Number (modified)
Prime Number (modified)
Riemann Zeta Function (modified)
Schoch Line (modified)
Schröder Number (modified)
Subfactorial (modified)
Woo Circle (modified)

Tuesday November 29, 2005

Cartesian Curve
Catalan Number (modified)
Cullen Number (modified)
Delannoy Number (modified)
Fibonacci Prime (modified)
Geometry (modified)
Harmonic Number (modified)
Integer Sequence Primes (modified)
Irregular Prime (modified)
Lucas Number (modified)
Mandelbrot Set (modified)
Matrix Minimal Polynomial (modified)
Multiple Root (modified)
Point (modified)
Power Difference Prime
Snark (modified)
Woodall Number (modified)

Monday November 28, 2005

Addition-Multiplication Magic Square (modified)
Prime Gaps (modified)
Seifert Conjecture (modified)
Sharpe Ratio (modified)
SOHCAHTOA (modified)
Sum-Free Set (modified)
Sum-Product Number (modified)

Sunday November 27, 2005

Mandelbrot Set (modified)
Unary Cofactor Triangle

Thursday November 24, 2005

Eigencenter

Sunday November 20, 2005

Gibert Point (modified)

Saturday November 19, 2005

Friday November 18, 2005

Thursday November 17, 2005

Wednesday November 16, 2005

Tuesday November 15, 2005

Monday November 14, 2005

Sunday November 13, 2005

Friday November 11, 2005

Thursday November 10, 2005

Wednesday November 9, 2005

Tuesday November 8, 2005

Anharmonic Section
Anticomplementary Triangle (modified)
Central Triangle (modified)
Circumcircle Mid-Arc Triangle (modified)
Circum-Medial Triangle (modified)
Circumnormal Triangle (modified)
Circum-Orthic Triangle (modified)
Circumtangential Triangle (modified)
Contact Triangle (modified)
Cross-Ratio (modified)
Diophantus's Riddle (modified)
D-Triangle (modified)
Equilateral Triangle (modified)
Euler Triangle (modified)
Excentral Triangle (modified)
Extouch Triangle (modified)
Feuerbach Triangle (modified)
First Brocard Triangle (modified)
First Morley Adjunct Triangle (modified)
First Morley Triangle (modified)
First Yff Circles Triangle (modified)
Fold Catastrophe (modified)
Four-Color Theorem (modified)
Fuhrmann Triangle (modified)
Hexyl Triangle (modified)
Incentral Triangle (modified)
Inner Napoleon Triangle (modified)
Inner Vecten Triangle (modified)
Lucas Central Triangle (modified)
Lucas Inner Triangle (modified)
Lucas Tangents Triangle (modified)
Medial Triangle (modified)
Mid-Arc Triangle (modified)
Nome (modified)
Orthic Triangle (modified)
Outer Napoleon Triangle (modified)
Outer Vecten Triangle (modified)
Reflection Triangle (modified)
Resultant (modified)
RSA Number (modified)
Second Brocard Triangle (modified)
Second Yff Circles Triangle (modified)
Stammler Triangle (modified)
Steiner Triangle (modified)
Tangential Mid-Arc Triangle (modified)
Tangential Triangle (modified)
Yff Central Triangle (modified)
Yff Contact Circle (modified)

Monday November 7, 2005

Chebyshev's Theorem (modified)
Cousin Primes (modified)
Isosceles Tetrahedron (modified)
One-Seventh Ellipse
Planar Graph (modified)
Positive Semidefinite Quadratic Form (modified)
Prime Number Theorem (modified)
Sexy Primes (modified)

Thursday November 3, 2005

Wednesday November 2, 2005

Catalan's Conjecture (modified)
Compact Set (modified)
Concho-Spiral (modified)
Cubic Close Packing (modified)
Cubic Lattice
Euler Line (modified)
Factorial Prime (modified)
Fatou's Lemma (modified)
Gergonne Line (modified)
Orthic Axis (modified)
Postage Stamp Problem (modified)
Propositional Calculus (modified)
Soddy Line (modified)
Wall-Sun-Sun Prime

Tuesday November 1, 2005

Cross-Ratio (modified)
Cross Ratio (modified)
Fuhrmann Triangle (modified)
Pell Number (modified)
Penrose Triangle (modified)
Pi Wordplay (modified)
Sierpiński Number of the Second Kind (modified)

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