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Napier's bones is a manually operated calculating device created by John Napier of Merchiston, Scotland for the calculation of products and quotients of numbers. The method was based on lattice multiplication , and also called rabdology , a word invented by Napier.
He also invented the so-called "Napier's bones" and made common the use of the decimal point in arithmetic and mathematics. Napier's birthplace, Merchiston Tower in Edinburgh, is now part of the facilities of Edinburgh Napier University. There is a memorial to him at St Cuthbert's at the west side of Edinburgh. [2]
The promptuary, also known as the card abacus is a calculating machine invented by the 16th-century Scottish mathematician John Napier and described in his book Rabdologiae [1] in which he also described Napier's bones. It is an extension of Napier's Bones, using two sets of rods to achieve multi-digit multiplication without the need to write ...
Genaille–Lucas rulers (also known as Genaille's rods) are an arithmetic tool invented by Henri Genaille, a French railway engineer, in 1891. The device is a variant of Napier's bones . By representing the carry graphically, the user can read off the results of simple multiplication problems directly, with no intermediate mental calculations .
Actress and writer Carrie Fisher made twenty-five guest appearances on Family Guy as Peter's boss, Angela. Family Guy is an American adult animated sitcom created by Seth MacFarlane for the Fox Broadcasting Company. The series centers on the Griffins, a family consisting of parents Peter and Lois; their children Meg, Chris, and Stewie; and ...
Napier's bones – John Napier; Newcomen steam engine – Thomas Newcomen; Newtonian telescope – Isaac Newton; Newton's Cradle – Isaac Newton; Nissen hut – Peter Norman Nissen; Nordenfelt gun – Thorsten Nordenfelt; Northrop Loom – James Henry Northrop; Odhner Arithmometer – Willgodt Theophil Odhner [24] Odón device – Jorge Odón [25]
Family Guy is an American animated sitcom created by Seth MacFarlane for the Fox Broadcasting Company. The series premiered on January 31, 1999, following Super Bowl XXXIII, with the rest of the first season airing from April 11, 1999.
A Toyota Prius, similar to the one Brian drives. Brian is a white-furred anthropomorphic dog. He can talk, generally walks on his hind legs (using his front legs as arms), has opposable thumbs, drives a second-generation Toyota Prius (with the license plate "BRI-DOG"), and is often portrayed as the only sane person in his family.