Across
- 2. the eighteenth letter; symbol for summation
- 3. the sixteenth letter; represents the math constant 3.14159
- 6. the fifteenth letter; used in naming virus variants
- 7. the sixth letter of the Greek alphabet
- 11. the second letter; used in software testing phases
- 13. the last letter of the Greek alphabet
- 14. the twenty-first letter; linked with the golden ratio
- 15. the fourth letter; symbol for change
Down
- 1. the twentieth letter of the Greek alphabet
- 4. the ninth letter; often means something very small
- 5. the fourteenth letter of the Greek alphabet
- 8. the eighth letter; used in trigonometry for angles
- 9. the eleventh letter; used in physics and computer science
- 10. the third letter; used in physics for rays
- 12. the first letter of the Greek alphabet