Definition & Betydelse | Engelska ordet ABACUS

Definition av ABACUS

1. abakus; kulram

Exempel på hur man kan använda ABACUS i en mening

• An abacus (: 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 Arabic numeral system.
• He endorsed and promoted study of Moorish and Greco-Roman arithmetic, mathematics and astronomy, reintroducing to Western Christendom the abacus, armillary sphere, and water organ, which had been lost to Latin Europe since the fall of the Western Roman Empire.
• The Chinese abacus uses two upper beads to represent the 5s and 5 lower beads to represent the 1s, the 7 beads can represent a hexadecimal digit from 0 to 15 in each column.
• The abacus was an instrument used by Greeks and Romans for arithmetic calculations, preceding the slide-rule and the electronic calculator, and consisted of perforated pebbles sliding on iron bars.
• The diminutive of abacus, abaculus, is used to describe small mosaic tiles, also called abaciscus or tessera, used to create ornamental floors with detailed patterns of chequers or squares in a tessellated pavement.
• His machine was composed of two sets of technologies: first an abacus made of Napier's bones, to simplify multiplications and divisions first described six years earlier in 1617, and for the mechanical part, it had a dialed pedometer to perform additions and subtractions.
• Before positional notation became standard, simple additive systems (sign-value notation) such as Roman numerals were used, and accountants in ancient Rome and during the Middle Ages used the abacus or stone counters to do arithmetic.
• Many versions of the abacus, such as the suanpan and soroban, use a biquinary system to simulate a decimal system for ease of calculation.
• Many other children, particularly younger children, attend nonacademic juku for piano lessons, English conversation, art instruction, Japanese calligraphy (shodō), swimming, and abacus (soroban) lessons.
• Sometime between 1666 and 1675, French polymath Claude Perrault invented the first slide calculator, called Abaque rhabdologique (a rabdological abacus), when he needed to do a lot of calculations while working as an architect.
• The second is the Cranmer abacus which has circular beads, longer rods, and a leather backcover so the beads do not slide around when in use.
• With one bead above and four below the bar, the systematic configuration of the Roman abacus is comparable to the modern Japanese soroban, although the soroban was historically derived from the suanpan.
• As it described, the original abacus had five beads (suan zhu) bunched by a stick in each column, separated by a transverse rod, and arrayed in a wooden rectangle box.
• This was verified when the right brain of visualisers showed heightened EEG activity when calculating, compared with others using an actual abacus to perform calculations.
• University of Georgia Astronomer Loris Magnani referred to these features as "mediocre at best" and sees them as "an abacus compared to Stonehenge’s computer".
• There were the letter writers of Sago Street—in Hokkien this street is called Gu Chia Chwi Hi Hng Cheng (front of Kreta Ayer Theatre), but it was mainly associated with life and death — the sandalwood idols of Club Street and the complicated and simple food of Mosque Street; all rang to the sound of the abacus.
• Echinus: Similar to the ovolo moulding and found beneath the abacus of the Doric capital or decorated with the egg-and-dart pattern below the Ionic capital.
• The abacus was first mentioned in the second century BC, alongside 'calculation with rods' (suan zi) in which small bamboo sticks are placed in successive squares of a checkerboard.
• The impost or abacus of a column in classical architecture may also serve as an abutment to an arch.

Förberedelsen av sidan tog: 316,97 ms.