Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » sci.math.* » sci.math

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

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
William Elliot

Posts: 1,618
Registered: 1/8/12
Re: Off Topic Physics/math question
Posted: Jan 5, 2013 1:08 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

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.




Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.