ready reckoner

短语

n. 简便计算表

词形变化

ready reckoners 复数

别名

ready-reckoner

释义与例句

n.
  1. 1.

    A printed book or table containing precalculated values, often multiples of given amounts.

    历史
  2. 2.

    A computer program which calculates values; an online calculator.

词汇关系

名词

同义词 1

reckoner

上位词 3

handbook enchiridion vade mecum

词源

Coined by English grammarian and textbook writer Daniel Fenning in 1757.

来源：wiktionary