Engel expansion
decomposition of a positive real number into a series of unit fractions, each an integer multiple of the next one
en-GB/ɛnd͡ʒɛl ɪkˈspænʃn/
en-US/ˈɛŋɡəl ɪkˈspænʃən/
decomposition of a positive real number into a series of unit fractions, each an integer multiple of the next one