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词汇 Napier's bones
释义

Definition of Napier's bones in English:

Napier's bones

plural noun ˈneɪpɪəzbəʊnz
Mathematics
  • Slips of ivory or other material divided into sections marked with digits, devised by John Napier and formerly used to facilitate multiplication and division.

    〔数〕纳皮尔乘除器

    Example sentencesExamples
    • This is another site that demonstrates how to multiply using Napier's bones.
    • He described a method of multiplication using rods with numbers marked off on them, called Napier's bones.
    • These rods however are quite a lot longer than Napier's bones usually were, so are too big to put in a pocket.
    • Napier is also credited with creating one of the earliest calculating machines (‘Napier's bones ’) and with the first systematic use of the decimal point.
    • Then stick the page onto a card and cut the bones out and pronto - you will have your own Napier's bones!

Definition of Napier's bones in US English:

Napier's bones

plural noun
Mathematics
  • Slips of ivory or other material divided into sections marked with digits, devised by John Napier and formerly used to facilitate multiplication and division.

    〔数〕纳皮尔乘除器

    Example sentencesExamples
    • Then stick the page onto a card and cut the bones out and pronto - you will have your own Napier's bones!
    • These rods however are quite a lot longer than Napier's bones usually were, so are too big to put in a pocket.
    • This is another site that demonstrates how to multiply using Napier's bones.
    • Napier is also credited with creating one of the earliest calculating machines (‘Napier's bones ’) and with the first systematic use of the decimal point.
    • He described a method of multiplication using rods with numbers marked off on them, called Napier's bones.
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