Possible Duplicate:
Is it meaningful to take the derivative of a function a non-integer number of times?
So about derivative everyone knows we have the first derivative second derivative. Is there any notion of one and a half derivative? Thanks.
Possible Duplicate:
Is it meaningful to take the derivative of a function a non-integer number of times?
So about derivative everyone knows we have the first derivative second derivative. Is there any notion of one and a half derivative? Thanks.