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In architecture, an abacus (from the Ancient Greek ἄβαξ (ábax), ' slab '; or French abaque, tailloir; pl.: abacuses or abaci) [1] is a flat slab forming the uppermost member or division of the capital of a column, above the bell.
In the Ionic capitals of the archaic Temple of Artemis at Ephesus (560 BC) the width of the abacus is twice that of its depth, consequently the earliest Ionic capital known was virtually a bracket capital. A century later, in the temple on the Ilissus, the abacus has become square (See the more complete discussion at Ionic order).
An abacus (pl. abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Hindu–Arabic numeral system. [1] An abacus consists of a two-dimensional array of slidable beads (or similar objects). In their ...
A suanpan (top) and a soroban (bottom). The two abaci seen here are of standard size and have thirteen rods each. Another variant of soroban. The soroban is composed of an odd number of columns or rods, each having beads: one separate bead having a value of five, called go-dama (五玉, ごだま, "five-bead") and four beads each having a value of one, called ichi-dama (一玉, いちだま ...
The Roman abacus was the first portable calculating device for engineers, merchants, and presumably tax collectors.It greatly reduced the time needed to perform the basic operations of arithmetic using Roman numerals.
Abaqus FEA [4] [5] (formerly ABAQUS) is a software suite for finite element analysis and computer-aided engineering, originally released in 1978.The name and logo of this software are based on the abacus calculation tool. [6]
“Game of Thrones” star Natalie Dormer is set to lead new Celyn Jones thriller series “Minotaur” alongside “Call My Agent’s” Assaad Bouab.
Objects, such as stones, were added for counting and then columns for place-valued arithmetic. The demarcation between an abax and an abacus seems to be poorly defined in history; [3] moreover, modern definitions of the word abacus universally describe it as a frame with rods and beads [4] and, in general, do not include the definition of "sand ...