solving the problem is easy
31Equation solving — In mathematics, to solve an equation is to find what values (numbers, functions, sets, etc.) fulfill a condition stated in the form of an equation (two expressions related by equality). These expressions contain one or more unknowns, which are… …
32Congruence lattice problem — In mathematics, the congruence lattice problem asks whether every algebraic distributive lattice is isomorphic to the congruence lattice of some other lattice. The problem was posed by Robert P. Dilworth, and for many years it was one of the most …
33Cryptanalysis of the Enigma — enabled the western Allies in World War II to read substantial amounts of secret Morse coded radio communications of the Axis powers that had been enciphered using Enigma machines. This yielded military intelligence which, along with that from… …
34Word problem for groups — In mathematics, especially in the area of abstract algebra known as combinatorial group theory, the word problem for a recursively presented group G is the algorithmic problem of deciding whether two words represent the same element. Although it… …
35Science and mathematics from the Renaissance to Descartes — George Molland Early in the nineteenth century John Playfair wrote for the Encyclopaedia Britannica a long article entitled ‘Dissertation; exhibiting a General View of the Progress of Mathematics and Physical Science, since the Revival of Letters …
36Transformation problem — In 20th century discussions of Karl Marx s economics the transformation problem is the problem of finding a general rule to transform the values of commodities (based on labour according to his labour theory of value) into the competitive prices… …
37Equichordal point problem — In Euclidean plane geometry, the equichordal point problem is the question whether a closed planar convex body can have two equichordal points.[1] The problem was originally posed in 1916 by Fujiwara and in 1917 by Wilhelm Blaschke, Rothe and… …
38List of Sabrina, the Teenage Witch characters — Sabrina, the Teenage Witch has hosted a wide array of characters and guests over its series run. Sabrina and Salem are the only two characters to remain on the show throughout all consecutive seven seasons and all three made for TV movies.… …
39International reactions to the 2006 Lebanon War — Reactions by the UN and national representativesflag|United NationsThe top UN official in Lebanon said Hezbollah’s action escalates the already tense situation along the Blue Line and is an act of very dangerous proportions, in a statement. Kofi… …
40Solutions of the Einstein field equations — Where appropriate, this article will use the abstract index notation. Solutions of the Einstein field equations are spacetimes that result from solving the Einstein field equations (EFE) of general relativity. Solving the field equations actually …
