I found a very useful tool for creating nicely formatted equations. I find MS-Word’s equation editor a little lacking when it comes to some math functions. I came across this site:
http://rogercortesi.com/eqn/index.php
which will allow you to enter a LaTeX equation and it will return the properly formatted equivalent in several convenient formats.

For example if you wanted to enter the equation for the prime twin counting function (the number of prime twins between P(n) and P(n)^2) the LaTeX would be:

\#twins[P(n)\to P(n)^2] =
[\frac{(P(1)-1)*(P(2)-1)*...*(P(n-1)-1)}{2*P(1)*P(2)*...*P(n-1)} *(P(n)^2-P(n))]- n*\log_{10}(n)*0.058652

the output would be:

Many thanks to Roger Cortesi for making this tool available.