Nam Byeong-gil
Nam Byeong-gil, also known as Nam Sang-gil, courtesy name Jasang, art name Yugiljae or Hyecheon, was a Korean mathematician and astronomer of the Joseon period. He was a member of the Uiryeong Nam clan. His brother Nam Byeong-cheol was also a noted astronomer.
His works included:
- Siheon giyo
- Seonggyeong
- Yangdo uidoseol
- Chubo cheoprye
- Chiljeong bobeop
- Taeyang chulippyo
- Seonhak jeongui
- Seontaek giyo
- Jungseong sinpyo
- Chunchu ilsiggo