one-letter matrix
51Latin square — A Latin square is an n times; n table filled with n different symbols in such a way that each symbol occurs exactly once in each row and exactly once in each column. Here is an example: egin{bmatrix} 1 2 3 2 3 1 3 1 2 end{bmatrix} Latin squares… …
52Four-square cipher — The Four square cipher is a manual symmetric encryption technique. It was invented by famous French cryptographer Felix Delastelle.The technique encrypts pairs of letters ( digraphs ), and thus falls into a category of ciphers known as… …
53Coxeter–Dynkin diagram — See also: Dynkin diagram Coxeter Dynkin diagrams for the fundamental finite Coxeter groups …
54Normal distribution — This article is about the univariate normal distribution. For normally distributed vectors, see Multivariate normal distribution. Probability density function The red line is the standard normal distribution Cumulative distribution function …
55Substitution cipher — In cryptography, a substitution cipher is a method of encryption by which units of plaintext are replaced with ciphertext according to a regular system; the units may be single letters (the most common), pairs of letters, triplets of letters,… …
56Max Born — (1882 1970) Born 11 December 1882(1882 12 11) …
57List of cliffhanger endings — This is a list of cliffhanger endings. Examples of films with cliffhanger endings * Some entries of the Godzilla film series end in cliffhangers: ** In Godzilla vs. Destoroyah , after Godzilla melts down, all of his radiation is absorbed by… …
58Quantum entanglement — Quantum mechanics Uncertainty principle …
59BLAST — Infobox Software name=BLAST developer=Myers, E., Altschul S.F., Gish W., Miller E.W., Lipman D.J., NCBI latest release version=2.2.18 operating system=UNIX, Linux, Mac, MS Windows genre=Bioinformatics tool license=Public Domain website=… …
60Doomsday rule — John Conway, inventor of the Doomsday algorithm The Doomsday rule or Doomsday algorithm is a way of calculating the day of the week of a given date. It provides a perpetual calendar since the Gregorian calendar moves in cycles of 400 years. This… …
