What is the difference between d/dx and d/d(x^2) in differentiation notation?

[Belgium 12]

Hi members,

see attached PdF file.

What's the difference between d/dx and d/d(x^2) I don't understand this notation??

Thank You

 

[Mark44]

Hi members,

see attached PdF file.

What's the difference between d/dx and d/d(x^2) I don't understand this notation??

Thank You

As far as I can see, the notation $\frac {\partial}{\partial a^2}$ means the partial (of something) with respect to $a^2$, where $a^2$ is being treated as its own variable.

 

[Stephen Tashi]

The link to that page on stackexchange is http://math.stackexchange.com/quest...frac-log-x-dx-sqrt-xx2a22-using-conto/1812144