Hey, "dx" is an object - it's just the dual of the operator "\frac{\partial}{\partial x}" !
And I must say, I understood basic calculus ever so much better when I knew that. In fact, I must remember to tell my first year economics students that as I teach them to differentiate. :-)
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And I must say, I understood basic calculus ever so much better when I knew that. In fact, I must remember to tell my first year economics students that as I teach them to differentiate. :-)