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Scott A WilsonU.S.
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I am capable of solving most ordinary differential equations and a few not so ordinary, but those are few and far between.  
Abe MantellAvailable

Hello, I am a college professor of mathematics and regularly teach all levels from elementary mathematics through differential equations, and would be happy to assist anyone with such questions! 
Hello Ty, Certainly it is an interesting problem to figure how the pricing was done...assuming there is a formula or algorithm that generated it. I would like to do some curve fitting and regression
Your example of Pi (ratio of the circumference to the diameter of a circle) clearly has no units. (it does not depend on the units used to measure the circumference and diameter of the circle) It is the
Hello John, This cannot be solved for analytically in terms of elementary functions. I did solve it numerically to obtain a very good approximation. x=40.7459009034... The attached graph shows
Hello Giulia, As far as I know, this has no general solution in terms of elementary functions. A computer algebra system (Maple) gives the following result: y(x) = KummerM((1/2)*e/b, 1/2, b*(dx)^2/a^2)*_C2+KummerU((1/2)*e/b
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