When creating forecast AstroSignatures you can now select Exponential Summation Percent and Exponential Summation Scaling factors. These are advanced features used in the new Tao Financial Forecast option to predict prices of the Dow Jones Industrial Average. Exponential summation is a calculation that allows the effect of an astrological influence to have a cumulative effect on prices rather than ending when an aspect between two planets is out of orb. A simple example is this: suppose Jupiter trine Uranus is associated with a rise in prices. Rather than the forecasted price returning back to normal when the aspect is out of orb, the exponential summation calculation results in a longer lasting effect on prices that is different from simply making the separating orb larger.