Lets face it, looking for homes to invest in takes enough time without having, for instance, to figure out mathematically if the deal makes sense with repair costs, holding costs and financing costs. 

From a cash on cash return basis, it is pretty much mathematically equivalent to traditional financing.

Without local market fundamental's, it's mathematical certainty of a depreciation in values.

Mathematically, the Seller will just add the 3% commission back to the sales price.

Human psychology is smaller, more often increases are more acceptable than one big increase even though the opposite is true mathematically. 

I can mathematically prove to you cold calling is bad!

As a lender, I'm sure you know a million agents, but you may consider finding one who owns investments, and therefore understands not only the mathematical calculus of divesting from an investment, but the emotional ramifications as well. 

Being able to mathematically add value with commercial property by increasing the NOI is a great strategy for wealth building.

Mathematically, one option is slower growth (which you agree to).

When you buy stocks, you're setting your intuition and understanding of the marketplace against professionals, guys attacking the prediction of stock prices using advanced mathematics and modeling.