eXpimal vs Etymology Dictionary

The most functional math logic calculator. This application has the functions as follows: - creating truth tables; - finding DNF, CNF, PDNF and PCNF; - finding Zhegalkin polynomial (Undetermined coefficients method and Pascal's triangle method); - making a Karnaugh map; - minimizing Boolean function with equivalence conversion (both briefly and in details); - minimize partially defined functions; - belonging to the Post classes; - plotting logical schemes (both IEC and ANSI schemes); - plotting ladder diagram; - minimizing functions using McCluskey method. Boolean functions may be displayed as multiple characters. Unary operation "negation" may be displayed either as a single character or in the form of an overline. Maximum number of variables in the function is limited by 6. Maximum number of function-embedded negations is limited by 5. Maximum number of characters in the function is limited by 64. Karnaugh maps, PCNF and PDNF functions, Zhegalkin polynomial and the McCluskey method only may be used for operating a value vector. The modulus of vector shall contain 4, 8, 16, 32, or 64 characters. The values of 0 and 1 may be used in this function but it will be subject to simplification only. The implication is inadmissible for plotting a logical scheme. No ads pop up. This application demonstrates intuitively understandable and trouble-free operations. All results are shown in details along with comments.

Etymology The way how a word comes. The essential language learning tool. When you want to study the origin of a word or learn the way in which its meanings have been changed throughout history, a serious and professional etymology English dictionary is very useful for rapidly searching accurate references. Knowing the origin of a word and the historical development of its meaning is an important part of language learning. This dictionary has collected a large number of sources, including variant of dictionary, lexicon, encyclopaedia, dialect, argot, jargon, slang, place name, surname, chemical name, music, linguistic data, ancient poems and books, the relations between different languages and other valuable materials, and be crafted as a practical pocket tool. Features: * Not only indexed etymologies by a word, but also words that have the same root indexed too. * List the language family, the nationality or the dialect area of the source. * Cross references of all root and keyword, search whole dictionary by only one link. * Add or remove your favourite to bookmark and conveniently review them later.