Incorrect derivative
122831
Why does putting a 1/2 in front of the squared error make the math easier?
91359
Are these mixed partial derivatives equal?
43637
Derivative of the sine function when the argument is measured in degrees
28096
Finding the derivative of $x\uparrow\uparrow n$
4735
Proof for alternative definition of the derivative
134745
float result is inaccurate
112859
$f(x,y) = \frac{x^3y}{x^4 + y^2}$ is not differentiable at $(0,0)$.
62352
Proving a scalar function is differentiable at the origin but that its partial derivatives are not continuous at that point.
79822
Problems with partial derivatives.
123532
An incorrect answer for an integral
12726
Differentiating both sides of a non-differential equation
36990
Notation of the second derivative - Where does the d go?
124499
Where is the error in my proof that all derivatives are continuous?
45548
An error in application of Runge's theorem
158520
Derivative of Fourier transform: $F[f]'=F[-ixf(x)]$
66181
Find the derivative of the function
127390
Second derivative of a composite function