Across
- 3. f(x)=x^2
- 5. Reciprocal of cosine
- 7. Limit n->inf. (1+r/n)^n
- 9. Undefined at 90 degrees
- 11. Sqrt -1
- 12. ax^3+bx^2+cx+d=0
- 13. x-x^3/3!+x^5/5!-x^7/7! ...
Down
- 1. Name of function for decimal-containing numbers
- 2. d/dx
- 4. Opposite of combination
- 6. Unknown angle
- 8. Automatic base of a logarithm
- 10. Circumference/diameter