Baca bagian di handap ieu sarta tuluy ngajawab patarosan saterusna dina basa nu sarua jeung bagian ieu: Passage: The second infinite sequence found in Europe, by John Wallis in 1655, was also an infinite product: Pertanyaan: Taun naon John Wallis manggihan a second infinite sequence?
1655 (dina basa Inggris)