Linear Algebra Symbols

Edit Answers
123456789
Across
  1. 3. ()
  2. 4. φ
  3. 7. x
  4. 9. ≡
Down
  1. 1. ∝
  2. 2. ∞
  3. 3. π
  4. 5. {}
  5. 6. ∆
  6. 8. []