The derivative of the absolute value |x|
3387
Derivative of $f(x)=|x|$
61548
What would be the roots of the derivative of this polynomial
53767
How to prove that derivatives have the Intermediate Value Property
20904
Finding derivative of this integral function.
80471
Derivative of $(y-XB)' h(y-XB)$ with respect to $B$
75216
What is the derivative of this?
105767
derivative under integral intuition
151864
Derivative of the Absolute Value Function in Mathematica looks very different from the actual answer
113888
Behavior of derivative near the zero of a function.
125615
Defining the derivative without limits
109943
Estimates of the value of a holomorphic function and its derivative
43637
Derivative of the sine function when the argument is measured in degrees
7945
Approximate $|x|$ with a smooth function
66433
Derivative of delta function
102279
Derivative of Quadratic Form
61293
What's the derivative of: $ \sqrt{x+\sqrt{{x}+\sqrt{x+\cdots}}}$?
16291
Discontinuous derivative.