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Strategies & Market Trends : Galapagos Islands

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To: Techplayer who wrote (16805)	12/21/2002 1:38:00 PM
From: Lazarus_Long	Read Replies (3) of 57110

LOL!! I'll plug all 2 million digits into my calculator now! :-) You had to have come across e; you must have forgotten. It is more common in mathematics than pi, actually. And in mathematical solutions to physical and engineering problems. It is the basis for natural logarithms: y = ln(x). It's name comes from (e)xponential decay. y = ae^-bt. A very common phenomenon, of course. It connects into the trigonometric functions through Euler's relation: e^ix = cox(x) + isin(x), i = sqrt(-1), of course. Because of that, cos(x) = (e^ix + e^-ix)/2 and sin(x) = (e^ix - e^-ix)/2i Another well-known relation from calculus: d __e^x = e^x dx which says e^x is its own derivative. More on e: mathcad.com mathworld.wolfram.com numbers.computation.free.fr

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