MATHinik Linear Algebra Symbols

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Across
  1. 3. ∝
  2. 6. (f ∘ g)
  3. 8. [a,b]
  4. 9. ⌊x⌋
  5. 10. φ
Down
  1. 1. ⌈x⌉
  2. 2. | x |
  3. 4. (a,b)
  4. 5. ∑
  5. 7. x!