"dy/dx" *is* perfectly well defined, and an object in its own right, in a standard classical treatment of calculus. It's just the lim as h tends to 0 of blah blah.
On the other hand, "dx" on its own is not defined in the standard classical treatment. But you don't ever actually need to say it.
no subject
"dy/dx" *is* perfectly well defined, and an object in its own right, in a standard classical treatment of calculus. It's just the lim as h tends to 0 of blah blah.
On the other hand, "dx" on its own is not defined in the standard classical treatment. But you don't ever actually need to say it.