Does the first example match the second example? If I remove the notation and replace with multiplication is it saying the same thing? I adjusted the copy of the second example; See file:

Question

anonymous · Answer

Almost forgot file, sorry.

anonymous · Answer

Yeah, its the same thing. I figured it out. Thanks though for those of you looking at it!

anonymous · Answer

I think the 'black spot' means d/dx?

anonymous · Answer

I put the black spot there. Thats what I think too. The black dot means "times/multiplied by."

anonymous · Answer

Not just "times," but "times the derivative."