Across
- 1. unknown value to find x
- 4. Δ = b2 - 4ac
- 6. WEAK APPROXIMATION
- 10. ≜
- 13. ABSOLUTE VALUE| x |
- 18. ∏
- 19. calculate expression inside first
- 20. SET { }
- 21. ∑
Down
- 2. INFINITY SYMBOL
- 3. ≫
- 5. (a,b) = {x | a < x < b}
- 6. APPROXIMATION ≈
- 7. (f ∘ g) (x) = f (g(x))
- 8. rounds number to upper integer
- 9. [a,b] = {x | a ≤ x ≤ b}
- 11. change / difference
- 12. ∝
- 14. ≪
- 15. IDENTICAL TO ≡
- 16. golden ratio constant φ
- 17. double summation ∑∑