But a good faith effort to engage in
modifying model equations and input parameters to more closely match the observations.
Not exact matches
By
modifying the hydrodynamic fish
equations for aerodynamics and then feeding them into a fluid dynamics
model, they were able to work out optimum turbine placements.
John Bogle's
modified version of the Gordon
Equation (or the Dividend Discount
Model) is that the total return from stocks equals the investment return plus the speculative return, where Investment Return = Dividend Yield + Earnings Growth Rate and Speculative Return = the change in the price to earnings ratio over the period examined.
The
equation of the
model can be
modified to allow for air resistance and the resulting
equation can be solved numerically.