Mathematician's Muse

12345678910111213
Across
  1. 3. Rugged terrain or a puppy's name
  2. 5. Limits... Derivatives
  3. 8. Once the hardest degree at UofT
  4. 9. A queen, and a middle name
  5. 12. His "Last Theorem"
  6. 13. The location where you first saw her smile at you
Down
  1. 1. Your most used instrument, after a Guitar
  2. 2. Simon's partner
  3. 4. The name of the rock
  4. 6. How you like your pie
  5. 7. Manipulation of variables
  6. 10. The sum of your grandchildren
  7. 11. A first date spot of the Swiss variety