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a specialized calculator designed for solving complex mathematical and scientific equations, commonly used by students, engineers, and scientists
科学计算器, 学术计算器
a type of calculator equipped with a built-in printer that produces a physical record of calculations
打印计算器, 带打印机的计算器
a type of calculator that allows users to write and execute customized programs to automate complex calculations
可编程计算器, 编程计算器
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计算器, 逆波兰计算器
a device that performs arithmetic operations through mechanical means, often using gears, levers, and other physical mechanisms, predating electronic calculators
机械计算器, 机械计算机
a mechanical or electronic device designed for performing arithmetic operations such as addition, subtraction, multiplication, and division
计算机, 计算器
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
算盘, 算具
a set of numbered rods used for multiplication and division, invented by John Napier in the 17th century
纳皮尔的骨头, 纳皮尔棍
a manual calculating tool with rows of beads or counters on rods or wires used for basic arithmetic operations
计算板, 算盘
a tool with marked rods or sticks used in ancient math, especially in Chinese and Japanese traditions
算筹, 计算棒
a mechanical calculator developed in the late 19th century, featuring multiple rows of keys corresponding to digits
计数器
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
差分机, 差分引擎
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
库尔塔, 库尔塔计算器
a mechanical analog device used for mathematical calculations, consisting of two logarithmic scales that slide past each other
计算尺, 滑尺
