2nd Blogiversary Puzzle!

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Across
  1. 4. A synonym for streamline
  2. 9. Website I use to create graphs
  3. 10. The closing on a blog post
  4. 14. involves sine, cosine, and tangent
  5. 16. A four-sided figure
  6. 18. What you do with most math problems
Down
  1. 1. WMP #40 topic
  2. 2. A unit of pressure
  3. 3. When the bars touch
  4. 5. I really like this type of math
  5. 6. This arrangement of numbers was also a 1999 movie
  6. 7. Mathematics that involves the alphabet
  7. 8. A French mathematician
  8. 11. Abbreviation for statistics
  9. 12. WMP #26 topic
  10. 13. My hometown
  11. 15. A search engine
  12. 17. The occasion for this puzzle