GainPhaseMargins[sys] gives the gain and phase margins of the linear time-invariant system sys.
GraphPlot3D[{v i 1 -> v j 1, v i 2 -> v j 2, ...}] generates a 3D plot of the graph in which vertex v_ik is connected to vertex v_jk.GraphPlot3D[{{v i 1 -> v j 1, lbl_1}, ...
GraphRadius[g] gives the minimum eccentricity of the vertices in the graph g.
GrayLevel[level] is a graphics directive that specifies the gray-level intensity with which objects that follow should be displayed. GrayLevel[g, a] specifies opacity a.
HistogramList[{x_1, x_2, ...}] gives a list of bins and histogram heights of the values x_i.HistogramList[{{x_1, y_1, ...}, {x_2, y_2, ...}, ...}] gives a list of bins and ...
ImageFilter[f, image, r] applies the function f to the range r neighborhood of each pixel in each channel of image.
InverseFourierCosTransform[expr, \[Omega], t] gives the symbolic inverse Fourier cosine transform of expr. InverseFourierCosTransform[expr, {\[Omega]_1, \[Omega]_2, \ ...}, ...
InverseFourierSinTransform[expr, \[Omega], t] gives the symbolic inverse Fourier sine transform of expr. InverseFourierSinTransform[expr, {\[Omega]_1, \[Omega]_2, \ ...}, ...
JacobiP
(Built-in Mathematica Symbol) JacobiP[n, a, b, x] gives the Jacobi polynomial P_n^(a, b)(x).
JacobiSymbol[n, m] gives the Jacobi symbol (n/m).