ちょうわすうれつ
調和数列
1. harmonic progressionMathematics
2. Harmonic progression (mathematics)In mathematics, a harmonic progression is a progression formed by taking the reciprocals of an arithmetic progression. In other words, it is a sequence of the form . where −1/d is not a natural number. Equivalently, a sequence is a harmonic progression when each term is the harmonic mean of the neighboring terms. Examples are 12, 6, 4, 3,, 2, …, 10, 30, −30, −10, −6, −, …,
Read “Harmonic progression (mathematics)” on English Wikipedia
Read “調和数列” on Japanese Wikipedia
Read “Harmonic progression (mathematics)” on DBpedia
Read “Harmonic progression (mathematics)” on English Wikipedia
Read “調和数列” on Japanese Wikipedia
Read “Harmonic progression (mathematics)” on DBpedia
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