Question: question on notation.... abs(1,x) vs x/abs(x)

When I take the derivative of abs(x), I use the chain rule and get this

When I ask Maple to differentiate abs(x), I get this:

I read the help file on "signum", and I expected this to work, but it does not.



How can I represent signum in normal calculus syntax when working the derivative of functions involving abs(x)?




Please Wait...