# New in *MathWorld* -- May
2005

### Friday May 20, 2005

- Factor Analysis
- Multivariate Analysis (modified)
- Weird Number (modified)

### Thursday May 19, 2005

- Developable Surface (modified)
- Inverse Tangent (modified)

### Wednesday May 18, 2005

### Monday May 16, 2005

- Frobenius Equation
- Frobenius Number (modified)
- FrobeniusSolve

### Thursday May 12, 2005

- Clifford Algebra (modified)
- Fibonacci Coefficient (modified)
- Finite Group (modified)
- Random Permutation (modified)
- Simple Group (modified)
- Triskaidekaphobia (modified)
- Voronin Universality Theorem (modified)

### Wednesday May 11, 2005

- Monostable Polyhedron
- Multistable Polyhedron (modified)
- Prime Spiral (modified)
- Unistable Polyhedron

### Tuesday May 10, 2005

- Integer Sequence Primes (modified)
- RSA Number (modified)
- Stem-and-Leaf Diagram (modified)
- StemLeafPlot

### Monday May 9, 2005

- Cayley Graph (modified)
- Prime Spiral (modified)

### Thursday May 5, 2005

- Graphic Matroid
- k-ary Divisor (modified)
- Margin of Error
- Multilinear Form
- Prime Spiral (modified)
- Proof by Contradiction

### Wednesday May 4, 2005

- Prime Number (modified)

### Tuesday May 3, 2005

- Cauchy Condensation Test
- Differential Evolution (modified)
- Proth Number (modified)
- Wallis Cosine Formula (modified)
- Wallis Sine Formula (modified)

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