# Differentiation notation

• I
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

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Mark44
Mentor
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.