PCAL Crossword Puzzle

1234567891011121314151617181920212223242526272829303132333435363738394041424344
Across
  1. 2. Rotation around the local z-axis
  2. 4. The result of dividing two quantities
  3. 7. The result of multiplying two quantities
  4. 11. A whole number
  5. 12. I created the Cartesian coordinate system
  6. 15. Instead of dividing by a fraction, we flip the 2nd fraction and ...
  7. 18. Not perpendicular but...
  8. 19. 3-d version of a square
  9. 23. The language of maths
  10. 24. Rotation around the local x-axis
  11. 26. The result of subtracting two quantities
  12. 28. The reciprocal of cosine
  13. 29. Not a fraction but a...
  14. 31. 1st letter in the Greek alphabet
  15. 32. A combination of variables and numbers
  16. 34. When you multiply like bases, you add each...
  17. 35. Order of operation
  18. 38. You can try, but you'll never change me
  19. 39. By all means, graph me
  20. 41. I am neither negative nor positive and I may have been created in India
  21. 42. Limitless, without bound
  22. 44. An expression of 2 or more terms
Down
  1. 1. Square root of 121
  2. 3. The reciprocal of sine
  3. 5. Not a power but a
  4. 6. 4th letter in the Greek alphabet
  5. 8. Another word for length
  6. 9. You can combine me, if you like :)
  7. 10. The point where two sides of a triangle meet
  8. 13. Rotate this direction for a negative angle
  9. 14. Einstein was born here
  10. 16. Rotation around the local y-axis
  11. 17. 2nd degree polynomial is a
  12. 20. A set-by-step set of instructions
  13. 21. 2nd letter in the Greek alphabet
  14. 22. It's a magic number!
  15. 25. I consist of a numerator and a denominator
  16. 27. Two lines with different slopes will do this in one location
  17. 30. Simplify here first before doing exponents
  18. 33. Shane's method for multiplying polynomials
  19. 36. Make sure I am balanced, please
  20. 37. The result of adding two quantities
  21. 39. Do this on top and bottom to reduce a rational expression
  22. 40. Anything to the zero power is...
  23. 43. He may have invented calculus