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Calculator spelling is an unintended characteristic of the seven-segment display traditionally used by calculators, in which, when read upside-down, the digits resemble letters of the Latin alphabet. Each digit may be mapped to one or more letters, creating a limited but functional subset of the alphabet, sometimes referred to as beghilos (or ...
A calculator is a special-purpose device for performing numerical calculations. ... Calculator spelling; Calculator watch; E. ... Reverse Polish notation; S.
Calculator spelling on seven-segment displays, where numbers represent letters upside down (e.g. 07734, , "hello"). Emulating the boustrophedon style of writing, where alternating lines are written in opposite directions.
Calculator spelling is an unintended characteristic of the seven-segment display traditionally used by calculators, in which, when read upside-down, the digits resemble letters of the Latin alphabet. Also, palindromic numbers and strobogrammatic numbers sometimes attract attention of mathematician ambigrammists. [55] [54]
A reverse dictionary is a dictionary alphabetized by the reversal of each entry: kcots (stock) kcotseid (diestock) kcotser (restock) kcotsevil (livestock) Before computers, reverse dictionaries were tedious to produce. The first computer-produced was Stahl and Scavnicky's A Reverse Dictionary of the Spanish Language, in 1974. [1]
Calculator spelling is the formation of words and phrases by displaying a number and turning the calculator upside down. [33] The jest may be formulated as a mathematical problem where the result, when read upside down, appears to be an identifiable phrase like " ShELL OIL " or " Esso " using seven-segment display character representations ...
The $395 HP-35, along with nearly all later HP engineering calculators, uses reverse Polish notation (RPN), also called postfix notation. A calculation like "8 plus 5" is, using RPN, performed by pressing 8, Enter↑, 5, and +; instead of the algebraic infix notation: 8, +, 5, =. It had 35 buttons and was based on Mostek Mk6020 chip.
dc (desk calculator) is a cross-platform reverse-Polish calculator which supports arbitrary-precision arithmetic. [1] It was written by Lorinda Cherry and Robert Morris at Bell Labs. [2] It is one of the oldest Unix utilities, preceding even the invention of the C programming language. Like other utilities of that vintage, it has a powerful set ...