Difference between revisions of "Abacus"
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| − | The '''abacus''' (plural abaci) was a | + | The '''abacus''' (plural abaci) was a digital calculation tool that was used to perform [[mathematical]] calculation especially for [[accounting|accountancy]] in [[medieval]] times. It works by having numbers represented by beads sliding on a rod. With it, the user can [[add]], [[subtract]], [[multiply]], [[divide]], and extract [[square root]]s. Today even though it is obsolete it is still widely used in [[Asia]], particularly in the [[People's Republic of China]] and the [[Republic of China]]. |
[[Category: Mathematics]] | [[Category: Mathematics]] | ||
[[Category: Technology]] | [[Category: Technology]] | ||
Revision as of 23:28, September 29, 2008
The abacus (plural abaci) was a digital calculation tool that was used to perform mathematical calculation especially for accountancy in medieval times. It works by having numbers represented by beads sliding on a rod. With it, the user can add, subtract, multiply, divide, and extract square roots. Today even though it is obsolete it is still widely used in Asia, particularly in the People's Republic of China and the Republic of China.