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Topic:
Off Topic Physics/math question
Replies:
3
Last Post:
Jan 5, 2013 12:35 PM




Re: Off Topic Physics/math question
Posted:
Jan 5, 2013 1:08 AM


On Fri, 4 Jan 2013, wrschlanger@gmail.com wrote:
> If y(x) = 1 / x > then y(x) > 0 when x > 0 and y(x) < 0 when x < 0. > > According to the power rule of Calculus, y'(x) = 1 / x^2. > So y'(x) is always negative. > > Are we losing information by taking the derivative?
Yes, f(x) = 1/x + c has the same derivative.



