Move the point T along the graph of y=sin(x) by moving the slider. The slope function (derivative) is then traced out in blue. Can you identify the graph of the derivative? This is a Java Applet ...

A. S. Lewis, Derivatives of Spectral Functions, Mathematics of Operations Research, Vol. 21, No. 3 (Aug., 1996), pp. 576-588 ...

Signal interpolation is an old problem that could be resolved by filtering techniques. One dedicated filter is used to determine the coefficients from the input samples and another filter is applied ...

D* generates symbolic derivatives which can be thousands of times faster than those generated by Mathematica or automatic differentiation. Functions with densely interconnected expression graphs, ...