Mathematical notation is a system of symbolic representations of mathematical objects and ideas. Mathematical notations are used in mathematics, the physical sciences, engineering, and economics. Mathematical notations include relatively simple symbolic representations, such as the numbers 0, 1 and 2, function symbols sin and +; conceptual symbols, such as lim, dy/dx, equations and variables; and complex diagrammatic notations such as Penrose graphical notation and Coxeter–Dynkin diagrams.
A mathematical notation is a writing system used for recording concepts in mathematics.
A software calculator is a calculator that has been implemented as a computer program, rather than as a physical hardware device.
They are among the simpler interactive software tools, and, as such, they:
Calculator spelling (also known as beghilos, the alphabet of available letters) is a technique of spelling words by reading characters upside-down from calculators equipped with certain kinds of seven-segment displays. It is a form of transformation of text.
An unintended characteristic of the seven-segment display is that many numbers, when read upside-down, resemble letters of the Latin alphabet. Each digit can be mapped to one or more letters, creating a limited but functional subset of the alphabet.
Office supplies are all the supplies regularly used in offices by businesses and other organizations. It includes small, expendable, daily use items such as paper clips, post-it notes, and staples, small machines such as hole punches, binders, staplers and laminators, writing utensils and paper, but also encompasses higher-cost equipment like computers, printers, fax machines, photocopiers and cash registers, as well as office furniture such as chairs, cubicles, filing cabinet, and armoire desks. Two very common]citation needed[ medium-to-high-cost office equipment items before the advent of suitably priced word processing machines and PCs in the 1970s and 1980s were typewriters and adding machines.
Many businesses in the office supply industry have recently expanded into related markets]citation needed[ for businesses like copy centers, which facilitate the creation and printing of business collateral such as business cards and stationery, plus printing and binding of high quality, high volume business and engineering documents. Some businesses also provide services for shipping, including packaging and bulk mailing. In addition, many retail chains sell related supplies beyond businesses and regularly market their stores as a center for school supplies with August and early September being a major retail period for Back to school sales.
In journalism, a human interest story is a feature story that discusses a person or people in an emotional way. It presents people and their problems, concerns, or achievements in a way that brings about interest, sympathy or motivation in the reader or viewer.
Human interest stories may be "the story behind the story" about an event, organization, or otherwise faceless historical happening, such as about the life of an individual soldier during wartime, an interview with a survivor of a natural disaster, a random act of kindness or profile of someone known for a career achievement.