Can you help me with this difference in notation?

Question

anonymous · Answer

yes

anonymous · Answer

$$\frac{ d^2 f }{ d x^2 }$$ Normally, we write partials like this:$$f_(xx)$$
Please note that's supposed to be f_(xx) but the equation editor is being rude. It means the 2nd derivative of f with respect to x. What does the first notation I showed mean?

anonymous · Answer

I can't read that.

anonymous · Answer

it is calculas

anonymous · Answer

I know it is! I need to know what it means!

anonymous · Answer

OH DEAR GODS

Does the notation I showed mean the 2nd derivative of f in respect to x, or something else?

anonymous · Answer

u are right

anonymous · Answer

Can I get some backup on this from someone else? D:

anonymous · Answer

@satellite73 please help him he is not unserstanding

anonymous · Answer

No, I'm just wary of your answer since you thought I didn't know that it was part of calculus. -_-

anonymous · Answer

ok

anonymous · Answer

these guys can help u good @satellite73, @hartnn , @Jonask, @Outkast3r09 , @robtobey

anonymous · Answer

i am not good to help u

anonymous · Answer

please help him @hartnn

hartnn · Answer

$\frac{ d^2 f }{ d x^2 } $ is not partial
$f_{xx}$is partial

anonymous · Answer

Well, the d is supposed to be dell, but I couldn't find it.

anonymous · Answer

attachment

hartnn · Answer

yes, then its the partial notation only

hartnn · Answer

both notation '2nd derivative of f with respect to x.'

hartnn · Answer

'treating other variables as constant'

anonymous · Answer

Thank you! I hate how my professor taught us in notation that most others don't use. Now I can get on with this assignment...