Across
- 2. name of the formula: v - e + f = 2
- 5. idea that Gauss never published
- 7. Euler's nickname as a result of his blindness
Down
- 1. instrument used to reflect sunlight over great distances
- 3. called the "prince of mathematics"
- 4. 17 sided polygon
- 6. the most prolific mathematician of all time