12. Casanova

Alt-text: and then I have all these new moves too, need 10 times as many observations to test them all, he said...

11. Quantum Emotion

... even Einstein said that it's "spooky action at a distance"... don't you dare superposition me!

10. Pareto Knows Your Life

Alt-text: If only he did not spread it out! Pareto!

9. Boyfriend Detector

 Alt: and I mean, you are not a stalker...

8. Heartbreak

7. I wanna be your outlier

6. Romance Functions

5. Brotherly Advice

4. Multiple Solutions

3. Concave vs. Convex Relationships

Origin of CONVEX

Middle French or Latin; Middle French convexe, from Latinconvexus vaulted, concave, convex, from com- + -vexus;perhaps akin to Latin vehere to carry — more at way

First Known Use: 1571

http://www.merriam-webster.com/dictionary/convex

CONVEX Function in MATH

http://en.wikipedia.org/wiki/Convex_function