Across
- 4. Surface generated by the movement of a line
- 6. Numbers of the form n(n+1)/2
- 8. Famous collaborator of Hardy
- 11. British statistician that used the pseudonym Student
- 13. Set formed by an unique element
- 15. Axial symmetry
- 19. Triangle having sides of different lenghts
- 20. Real number that is not the root of a polynomial with integer coefficient
Down
- 1. Rudimentary method for approximation of solutions of f(x)=0
- 2. Diagram representing the frecuency distribution of data in intervals
- 3. Function that generalizes the factorial
- 5. Sets with no common elements
- 7. Introduced decimal logarithms
- 9. Family name of Lewis Carroll
- 10. Intersection point of the perpendicular bisectors in a triangle
- 12. Number of the type 2^p-1 (p prime)
- 14. Sum of two or more vectors
- 16. Locally convex complete metrizable space
- 17. Transformation that preserves distance
- 18. Developed the method of indivisibles by Cavalieri