bn:02020989n
Noun Concept
Categories: All articles with vague or ambiguous time, Japanese mathematics, Mathematical tools, Pages using sidebar with the child parameter, Korean mathematics
EN
counting rods  Chóu  counting rod  counting rod numerals  rod numeral
EN
Counting rods are small bars, typically 3–14 cm long, that were used by mathematicians for calculation in ancient East Asia. Wikipedia
Definitions
Relations
Sources
EN
Counting rods are small bars, typically 3–14 cm long, that were used by mathematicians for calculation in ancient East Asia. Wikipedia