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 Feb3 comment Cycling through powers of a generator of finite field. Something similar to modpow for Z/nZ @mjohn1282 review the handbook of applied cryptography's Chapter 14 for pseudocode. cacr.uwaterloo.ca/hac/about/chap14.pdf Jul2 awarded Curious Jan16 comment Countably infinite composition of injective functions. Wow! You've resurrected this from the grave and gave a solid answer. Thanks. Jan16 accepted Countably infinite composition of injective functions. May9 awarded Nice Question May7 asked Does this graph have a name? Jan18 comment Differential equation - quick question (first order differential ) Have you looked into Riccati Equations?[(1),(2),(3)] Dec16 comment Ratio of largest eigenvalue to sum of eigenvalues — where to read about it? @Per In principle component analysis, your formula is the proportion of variation in the first principle component, if we assume the eigenvalues are ordered from largest to smallest, i.e. $E_1 > E_2 > \cdots >E_N>0$ We do this a lot in statistics to re-orient data (without scaling) such that the $i^{th}$ eigenvalues give you a measure of variation in the $i^{th}$ eigenvector axis. Dec16 comment What sample size is needed to make sure that with 99% probability, the mean of the sample will be in error by at most 0.25 Are you assuming the population mean of the normally distributed population is 0? "the mean of the sample will be in error by at most 0.25?" Are you asking if $P \left(\left.\left\vert \bar{x} - \mu \right\vert < .25\right\vert \text{sample size }n\right) = .99$? Nov27 revised Are All Orthogonal Matrices Conformal Mappings? Added information to answer Nov27 answered Are All Orthogonal Matrices Conformal Mappings? Nov27 asked Are All Orthogonal Matrices Conformal Mappings? Oct2 revised Graph Isomorphisms, Delaunay Triangulation on a sphere, and Kulikowski's Theorem I added Polyhedra because the lattice points on the sphere can be thought of as vertices of a polyhedron. Oct2 comment Graph Isomorphisms, Delaunay Triangulation on a sphere, and Kulikowski's Theorem Okay, I thought about the lattice sphere for a little bit. 1. There are 3 types of faces on the sphere. Because I don't know the basis of the lattice, I assume $\left\lbrace l_1, l_2, l_3 \right\rbrace$ is a basis and that there can be three distinct angles that can be formed, the angle between $l_1$ and $l_2$, the angle between $l_2$ and $l_3$, and the angle between $l_1$ and $l_3$. We construct the equivalence classes of $\mathcal{F}_{\left\lbrace L_i\right\rbrace_{i=1}^n }$ determined by these distinct angles formed. Also, I can think of the lattice points as vertices of a polyhedron Oct2 comment Graph Isomorphisms, Delaunay Triangulation on a sphere, and Kulikowski's Theorem I'm wondering if this question is more catered to the mathoverflow. Yay? Nay? If not, then which community could best guide me to some answers? Oct1 asked Graph Isomorphisms, Delaunay Triangulation on a sphere, and Kulikowski's Theorem Sep26 comment Is there a set that is both a sigma algebra and a topology but not a powerset? thank you for your reply. Sep26 awarded Commentator Sep26 comment Is there a set that is both a sigma algebra and a topology but not a powerset? @AsafKaragila thank you for your reply! Sep24 awarded Supporter