Derivative of oscillatory integral with absolute value
136738
Does the limit $\lim _{x\to 0} \frac 1x \int_0^x \left|\cos \frac 1t \right| dt$ exists?
144023
Indefinite integral which is not differentiable
122341
Exponential of a Differential Operator
40564
Prove that $u(x,t)=\int_{-\infty}^{\infty}c(w)e^{-iwx}e^{-kw^2t}dw\rightarrow 0$ if $x\rightarrow \infty$
75548
second derivative of the inverse function
49781
Existence of the absolute value of the limit implies that either $f \ $ or $\bar{f} \ $ is complex-differentiable
113888
Behavior of derivative near the zero of a function.
112898
Derivative of sin(x)/x at $0$ by definition of derivative
88386
Derivative of matrix exponential at $0$
21922
Elegant way of obtaining the envelope of oscillating function
84436
third derivative of inverse function
38192
Derivative of inverse function at a point.
89057
How does one properly define the derivative of one operator-valued function?
12446
integral involving a periodic function
65889
Showing $\Phi(x)=\int_0^x (x-t)f(t)\,dt$ is twice differentiable and finding $\Phi''(x)$
84597
Derivative of $(1-x)^{-2}$
134871
Using definition of derivative to differentiate $f(x)= \sqrt{x}+1$