# whats d^2y/dx^2?

• Jan 2nd 2010, 12:35 PM
KevinChan
whats d^2y/dx^2?
d^2y/dx^2 is this a derivative of a derivative? Thanks
• Jan 2nd 2010, 12:37 PM
Chris L T521
Quote:

Originally Posted by KevinChan
d^2y/dx^2 is this a derivative of a derivative? Thanks

Its the second derivative of a function.
• Jan 2nd 2010, 12:52 PM
skeeter
Quote:

Originally Posted by KevinChan
d^2y/dx^2 is this a derivative of a derivative? Thanks

yes

$\frac{d}{dx}\left(\frac{dy}{dx}\right) = \frac{d^2y}{dx^2}$
• Jan 2nd 2010, 04:14 PM
doomgaze
Many people get this notation confused to have something to do with squaring the derivative. It is exactly what the other they said.