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If K is a field extension of the rational numbers Q of degree [K:Q] = 3, then K is called a cubic field.Any such field is isomorphic to a field of the form [] / (())where f is an irreducible cubic polynomial with coefficients in Q.
The following are the current official speedcubing world records approved by the WCA. [4]Note: For averages of 5 solves, the best time and the worst time are dropped, and the mean of the remaining 3 solves is taken.
The manipulations of the Rubik's Cube form the Rubik's Cube group. The Rubik's Cube group (,) represents the structure of the Rubik's Cube mechanical puzzle.Each element of the set corresponds to a cube move, which is the effect of any sequence of rotations of the cube's faces.
It can be proven by counting arguments that there exist positions needing at least 18 moves to solve. To show this, first count the number of cube positions that exist in total, then count the number of positions achievable using at most 17 moves starting from a solved cube.
On June 22, 2024 in Johor Bahru, Malaysia, Wang achieved a world record average of 0.78 seconds on the 2x2x2 Rubik's Cube.The manner in which Wang started the competition-standard StackMat ™ timer drew criticism; frame-by-frame analysis of the solves revealed that Wang had touched or even begun turning the puzzle before lifting his hands off the timer in some of the solves, [13] both of ...
Cube 2: Sauerbraten started as a redesign of the original Cube game engine. [6] [7] The engine is written in C++ and OpenGL.The game shares most of its design goals and philosophy with its predecessor, but uses a new 6-directional heightfield (or octree) [dubious – discuss] world model.
StackBlitz was released to the public on August 2, 2017 by entrepreneur Eric Simons as an online integrated development environment for creating and sharing Angular and React projects. [1]
In classical mechanics, the central-force problem is to determine the motion of a particle in a single central potential field.A central force is a force (possibly negative) that points from the particle directly towards a fixed point in space, the center, and whose magnitude only depends on the distance of the object to the center.