What I'm going to show here was originally observed by [Leonhard] Euler, the great mathematician, in the 1700s.
What I'm going to show here was originally observed by [Leonhard] Euler, the great mathematician, in the 1700s.
user
Те, що я покажу тут, вперше помітив [Леонард] Ейлер, великий математик 18-го століття.
assistant