密率

Chinese

		secret; confidential; close secret; confidential; close; thick; dense	to lead; command; rate to lead; command; rate; frequency
simp. and trad. (密率)		密	率

Pronunciation

• Mandarin

  (Pinyin): mìlǜ

  (Zhuyin): ㄇㄧˋ ㄌㄩˋ

• Cantonese (Jyutping): mat⁶ leot^6-2

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• Mandarin
  • (Standard Chinese)⁺
    • Hanyu Pinyin: mìlǜ
    • Zhuyin: ㄇㄧˋ ㄌㄩˋ
    • Tongyong Pinyin: mìlyù
    • Wade–Giles: mi⁴-lü⁴
    • Yale: mì-lyù
    • Gwoyeu Romatzyh: mihliuh
    • Palladius: милюй (miljuj)
    • Sinological IPA ^(key): /mi⁵¹⁻⁵³ ly⁵¹/
• Cantonese
  • (Standard Cantonese, Guangzhou–Hong Kong)⁺
    • Jyutping: mat⁶ leot^6-2
    • Yale: maht léut
    • Cantonese Pinyin: mat⁹ loet^9-2
    • Guangdong Romanization: med⁶ lêd^6-2
    • Sinological IPA ^(key): /mɐt̚² lɵt̚²⁻³⁵/

Noun

密率

1. (traditional Chinese mathematics) the “minute ratio” (355/113, approximation of pi discovered by Zu Chongzhi)

   • 密率，圓徑一百一十三，圓周三百五十五。約率，圓徑七，周二十二。 [MSC, trad.]
     密率，圆径一百一十三，圆周三百五十五。约率，圆径七，周二十二。 [MSC, simp.]

     From: 《隋書·律曆志上》

     Mìlǜ, yuánjìng yībǎi yīshí sān, yuánzhōu sānbǎi wǔshí wǔ. Yuēlǜ, yuánjìng qī, zhōu èrshí'èr. [Pinyin]

     The minute ratio: diameter 113, circumference 355. The simple ratio: diameter 7, circumference 22.

2. (number theory) density

Coordinate terms

• (ratio of pi) 約率／约率