stanley dodds

 7 Is there an easy way to see that binary expansion is unique? 3 Transform the partial differential equation with new independent variables 2 $G$ is a non-abelian group of order 6 $\implies G \approx S_3$. Simpler proof? 2 Why isn't the “2” in the normal distribution a parameter? 2 Solve : $x+y=2010$, $(\sqrt[3]{x}+\sqrt[3]{y})(\sqrt[3]{x}+11)(\sqrt[3]{y}+11)=2942$

### Reputation (605)

 +10 surface area of 'cylinder' with the top cut at an angle +5 geometry question-semicircle inscribed in quadrilateral. +25 Proving that $\frac{1}{n}DFT(DFT(x_N))$ is $\{x_0, x_{N - 1}, \dots, x_1 \}$ +15 $G$ is a non-abelian group of order 6 $\implies G \approx S_3$. Simpler proof?

### Questions (13)

 18 strictly increasing function from reals to reals which is never an algebraic number 6 Solving a 6th degree polynomial equation 2 geometry question-semicircle inscribed in quadrilateral. 1 surface area of 'cylinder' with the top cut at an angle 1 upper bound on, or fast algorithm to find, an order $2^n$ element in the multiplicative group modulo prime $q(2^n)+1$

### Tags (45)

 7 binary 2 summation × 2 6 elementary-number-theory × 2 2 finite-groups 3 multivariable-calculus 2 group-theory 3 pde 2 proof-verification 2 systems-of-equations × 3 2 group-isomorphism