HomeHacker News Show HN: A work-in-progress simulator for the Facit C1-13 mechanical calculator https://ift.tt/tE4VXuM byHat hair -March 27, 2022 0 Show HN: A work-in-progress simulator for the Facit C1-13 mechanical calculator https://ift.tt/6lcreBJ March 28, 2022 at 05:12AM Tags: Hacker News Facebook Twitter