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a small electronic device or software used to do mathematical operations
電卓, 計算機
a specialized calculator designed for solving complex mathematical and scientific equations, commonly used by students, engineers, and scientists
科学計算機, サイエンス電卓
a type of calculator equipped with a built-in printer that produces a physical record of calculations
印刷機能付き電卓, 印刷電卓
a type of calculator that allows users to write and execute customized programs to automate complex calculations
プログラム可能な電卓, プログラマブル電卓
a type of calculator that operates on a postfix notation system, where operators follow their operands, offering simplicity and efficiency in engineering and scientific calculations
RPN計算機, RPN電卓
a device that performs arithmetic operations through mechanical means, often using gears, levers, and other physical mechanisms, predating electronic calculators
機械式計算機, 機械計算機
a mechanical or electronic device designed for performing arithmetic operations such as addition, subtraction, multiplication, and division
計算機, 計算機械
a tool used for counting and calculating that consists of a frame with rods or wires on which beads or stones are moved up and down using hands
そろばん, アバカス
a set of numbered rods used for multiplication and division, invented by John Napier in the 17th century
ネイピアの棒, ネイピアの骨
a manual calculating tool with rows of beads or counters on rods or wires used for basic arithmetic operations
計算盤, アバカス
a tool with marked rods or sticks used in ancient math, especially in Chinese and Japanese traditions
算盤珠, 計算棒
a mechanical calculator developed in the late 19th century, featuring multiple rows of keys corresponding to digits
コンプトメーター
a mechanical calculator designed by Charles Babbage in the 19th century, intended to perform mathematical calculations automatically by the method of finite differences, considered a precursor to modern computers
差分機関, ディファレンスエンジン
a compact, hand-cranked mechanical calculator invented by Curt Herzstark in the 1940s, renowned for its innovative design and portability, capable of performing complex arithmetic calculations
クルタ, クルタ計算機
a mechanical analog device used for mathematical calculations, consisting of two logarithmic scales that slide past each other
スライド式計算尺, 滑り尺
