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  2. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    In 1985, CI launched a calculator for the construction industry called the Construction Master [49] which came preprogrammed with common construction calculations (such as angles, stairs, roofing math, pitch, rise, run, and feet-inch fraction conversions). This would be the first in a line of construction related calculators.

  3. KDE Education Project - Wikipedia

    en.wikipedia.org/wiki/KDE_Education_Project

    KAlgebra - A mathematical calculator that lets you plot different types of 2D and 3D functions and perform based upon content markup MathML language. [11] KBruch - Small program to practice calculations with fractions and percentages. [12] Kig - Program for interactively exploring geometric constructions. [13]

  4. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    The number π (/ p aɪ /; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.

  5. Saber y ganar - Wikipedia

    en.wikipedia.org/wiki/Saber_y_Ganar

    Saber y Ganar is a Peruvian television program. Each episode consisted of two hosts ask questions about a theme previously selected by the participant. 5 questions were asked the first night and the following 6th through 10th questions were asked in 5 additional weeks.

  6. The National Museum of Computing - Wikipedia

    en.wikipedia.org/wiki/The_National_Museum_of...

    The original EDSAC (Electronic Delay Storage Automatic Calculator) was constructed by the Cambridge University Mathematical Laboratory under Sir Maurice Wilkes. [19] Wilkes had read John von Neumann's seminal paper First Draft of a Report on the EDVAC and attended the Moore School Lectures in Summer 1946. Starting in 1947, he designed and built ...

  7. Division (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Division_(mathematics)

    The simplest way of viewing division is in terms of quotition and partition: from the quotition perspective, 20 / 5 means the number of 5s that must be added to get 20. In terms of partition, 20 / 5 means the size of each of 5 parts into which a set of size 20 is divided.

  8. Pensions crisis - Wikipedia

    en.wikipedia.org/wiki/Pensions_crisis

    Increased life expectancy (with fixed retirement age) increases the number of retirees at any time, since individuals are retired for a longer fraction of their lives, while decreases in the fertility rate decrease the number of workers. In 1950 there were 7.2 people aged 20–64 for every person of 65 or over in the OECD countries.