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ggalex
Posts:
3
Registered:
10/23/08


Question: first derivative of exponential function
Posted:
Oct 23, 2008 8:15 AM


Hi people
I have very elementary question cuz it's been a while since I took my last calculas question.
I am looking for the equation or the first derivative of exponential regression function:
For example
Y = aX^2 + bX + c
For the above function, the first derivative is: 2aX + b, while 'a', 'b' and 'c' are constant.
My question is for exponential function Y = f(X)
Y = exp(aX), 'a' is constant and can be negative, positive or fraction. So this is the equation what I wanted the first derivative.
So what is the first derivative of Y' for exponential function above d(Y)/d(X).
If I am not mistaken, i though the first derivative of exponential function is, the exponential function itself. But I am not sure if it is true in the presence of constant ('a'), or does it change when the constant is above or below 0?
Can it be exp(aX) or exp(X)...
Message was edited by: ggalex



