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  2. Irreducible fraction - Wikipedia

    en.wikipedia.org/wiki/Irreducible_fraction

    In the second step, they were divided by 3. The final result, ⁠ 4 / 3 ⁠, is an irreducible fraction because 4 and 3 have no common factors other than 1. The original fraction could have also been reduced in a single step by using the greatest common divisor of 90 and 120, which is 30. As 120 ÷ 30 = 4, and 90 ÷ 30 = 3, one gets

  3. Teechart - Wikipedia

    en.wikipedia.org/wiki/Teechart

    TeeChart is a general purpose charting component designed for use in differing ambits, offering a wide range of aesthetics to chart data. Generally TeeCharts published in the field, in areas where large amounts of data must be interpreted regularly, remain by designer choice in their simplest form to maximize the "data-ink ratio". [10]

  4. Chart - Wikipedia

    en.wikipedia.org/wiki/Chart

    A pie chart showing the composition of the 38th Parliament of Canada. A chart (sometimes known as a graph) is a graphical representation for data visualization, in which "the data is represented by symbols, such as bars in a bar chart, lines in a line chart, or slices in a pie chart". [1]

  5. Morse code - Wikipedia

    en.wikipedia.org/wiki/Morse_code

    Chart of the Morse code 26 letters and 10 numerals [1]. This Morse key was originally used by Gotthard railway, later by a shortwave radio amateur [2]. Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs.

  6. Standard form - Wikipedia

    en.wikipedia.org/wiki/Standard_form

    Standard form may refer to a way of writing very large or very small numbers by comparing the powers of ten. It is also known as Scientific notation . Numbers in standard form are written in this format: a×10 n Where a is a number 1 ≤ a < 10 and n is an integer.

  7. Arc diagram - Wikipedia

    en.wikipedia.org/wiki/Arc_diagram

    In this form it has a vertex for each number, placed on the number line, and a semicircular edge above the line connecting pairs of numbers / and / (in simplest terms) for which | | =. The semicircles of the diagram may be thought of as lines in the Poincaré half-plane model of the hyperbolic plane , with the vertices placed at infinite points ...

  8. 5-cell - Wikipedia

    en.wikipedia.org/wiki/5-cell

    In geometry, the 5-cell is the convex 4-polytope with Schläfli symbol {3,3,3}. It is a 5-vertex four-dimensional object bounded by five tetrahedral cells. It is also known as a C 5, hypertetrahedron, pentachoron, [1] pentatope, pentahedroid, [2] tetrahedral pyramid, or 4-simplex (Coxeter's polytope), [3] the simplest possible convex 4-polytope, and is analogous to the tetrahedron in three ...

  9. Primitive recursive arithmetic - Wikipedia

    en.wikipedia.org/wiki/Primitive_recursive_arithmetic

    Primitive recursive arithmetic (PRA) is a quantifier-free formalization of the natural numbers.It was first proposed by Norwegian mathematician Skolem (1923), [1] as a formalization of his finitistic conception of the foundations of arithmetic, and it is widely agreed that all reasoning of PRA is finitistic.