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  2. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    The top grade, A, is given here for performance that exceeds the mean by more than 1.5 standard deviations, a B for performance between 0.5 and 1.5 standard deviations above the mean, and so on. [18] Regardless of the absolute performance of the students, the best score in the group receives a top grade and the worst score receives a failing grade.

  3. Academic grading in Germany - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_Germany

    Academic grading. Germany uses a 5- or 6-point grading scale (GPA) to evaluate academic performance for the youngest to the oldest students. Grades vary from 1 (excellent, sehr gut) to 5 (resp. 6) (insufficient, nicht genügend). In the final classes of German Gymnasium schools that prepare for university studies, a point system is used with 15 ...

  4. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    A simple fraction (also known as a common fraction or vulgar fraction, where vulgar is Latin for "common") is a rational number written as a / b or ⁠ ⁠, where a and b are both integers. [9] As with other fractions, the denominator (b) cannot be zero. Examples include ⁠ 1 2 ⁠, − ⁠ 8 5 ⁠, ⁠ −8 5 ⁠, and ⁠ 8 −5 ⁠.

  5. 2.5 Dimensional Seduction - Wikipedia

    en.wikipedia.org/wiki/2.5_Dimensional_Seduction

    Anime and manga portal. 2.5 Dimensional Seduction (Japanese: 2.5次元の 誘惑 リリサ, Hepburn: Nitengo-jigen no Ririsa, transl. "2.5 Dimensional Lilysa")[a] is a Japanese manga series written and illustrated by Yu Hashimoto. It began serialization on Shueisha 's Shōnen Jump+ website in June 2019.

  6. 2.5D (visual perception) - Wikipedia

    en.wikipedia.org/wiki/2.5D_(visual_perception)

    2.5D is an effect in visual perception. It is the construction of an apparently three-dimensional environment from 2D retinal projections. [1][2][3] While the result is technically 2D, it allows for the illusion of depth. It is easier for the eye to discern the distance between two items than the depth of a single object in the view field. [4]

  7. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    Mathematics is a field of study that discovers and organizes methods, theories and theorems that are developed and proved for the needs of empirical sciences and mathematics itself. There are many areas of mathematics, which include number theory (the study of numbers), algebra (the study of formulas and related structures), geometry (the study ...

  8. Tower of Hanoi - Wikipedia

    en.wikipedia.org/wiki/Tower_of_Hanoi

    This variation of the famous Tower of Hanoi puzzle was offered to grade 3–6 students at 2ème Championnat de France des Jeux Mathématiques et Logiques held in July 1988. [31] Final configuration of bicolor Towers of Hanoi (n=4) The rules of the puzzle are essentially the same: disks are transferred between pegs one at a time.

  9. Power of two - Wikipedia

    en.wikipedia.org/wiki/Power_of_two

    Power of two. A power of two is a number of the form 2n where n is an integer, that is, the result of exponentiation with number two as the base and integer n as the exponent. Powers of two with non-negative exponents are integers: 20 = 1, 21 = 2, and 2n is two multiplied by itself n times. [1][2] The first ten powers of 2 for non-negative ...