enlaces

Base file:
http://pastebin.com/bWCQVreA

function exponente1:

http://pastebin.com/rb2dY7c2

Calculate a volumetric mean diameter (d1^3+d2^3)^(1/3) and then check if the value of that diameter is between others

function exponente2:

http://pastebin.com/bTDRsCyU

The same than before, but the mean diameter is calculated by (d1*d1*d1+d2*d2*d2)^(1/3)

function exponente3
http://pastebin.com/i1MgxsPP

This time i dont compare the volumetric mean diameter, instead i compare the cube of that against the cube of the limits values (for what i need it, it does the same)