Across
- 2. equations
- 7. someone that studies theories
- 8. someone that calculates problems
- 9. are used to
Down
- 1. the country Rene Descartes
- 3. numbers and quantities in
- 4. the part of mathematics in which letters
- 5. his nickname was this
- 6. the branch of mathematics concerned with
- 10. someone that studies facts