Rene Descartes

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Across
  1. 2. how many categories his philosophy was divided into.
  2. 5. what he degree he graduated with.
  3. 6. He entered Jesuit collage at age?
  4. 7. he introduced the way we write a number times a the same number.
  5. 10. His coordinate system can be used to duplicate these ...
  6. 13. Algebra and geometry combined.
  7. 15. He died by contracting this sickness.
Down
  1. 1. what he was for nine years.
  2. 3. In 1637 he created this ...
  3. 4. The book that he wrote about mathematics.
  4. 8. He instituted using which variables for unknowns in an equation.
  5. 9. He tutored this queen.
  6. 11. His two dimensional coordinate system includes a coordinate point and these ...
  7. 12. He helped establish what formula?
  8. 14. Where he was born.