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a specialized calculator designed for solving complex mathematical and scientific equations, commonly used by students, engineers, and scientists
科学計算機
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
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
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
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
a mechanical or electronic device designed for performing arithmetic operations such as addition, subtraction, multiplication, and division
計算機
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
a set of numbered rods used for multiplication and division, invented by John Napier in the 17th century
ネイピアの棒
a manual calculating tool with rows of beads or counters on rods or wires used for basic arithmetic operations
計算盤
a tool with marked rods or sticks used in ancient math, especially in Chinese and Japanese traditions
算盤珠
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
an early mechanical calculator invented by Blaise Pascal in the 17th century, capable of performing addition and subtraction through gear mechanisms, considered one of the first mechanical calculators
パスカリーヌ
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
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
