HilbertMatrix[n] gives the n*n Hilbert matrix with elements of the form 1/(i + j - 1).HilbertMatrix[{m, n}] gives the m*n Hilbert matrix.
ImageData[image] gives the array of pixel values in image.ImageData[image, " type"] gives the array of pixel values converted to the specified type.
InterpolationOrder is an option for Interpolation, as well as ListLinePlot, ListPlot3D, ListContourPlot, and related functions, that specifies what order of interpolation to ...
Inverse
(Built-in Mathematica Symbol) Inverse[m] gives the inverse of a square matrix m.
Level
(Built-in Mathematica Symbol) Level[expr, levelspec] gives a list of all subexpressions of expr on levels specified by levelspec. Level[expr, levelspec, f] applies f to the sequence of subexpressions.
ListContourPlot3D[array] generates a contour plot from a three-dimensional array of values. ListContourPlot3D[{{x_1, y_1, z_1, f_1}, {x_2, y_2, z_2, f_2}, ...}] generates a ...
ListDeconvolve[ker, list] gives a deconvolution of list using kernel ker.
Threshold[data] thresholds data by replacing values close to zero by zero.Threshold[data, tspec] thresholds data using threshold specification tspec.Threshold[image, ...] ...
Using the objects described in "Introduction to Patterns", you can set up patterns for many kinds of expressions. In all cases, you must remember that the patterns must ...
TetGenGetFaceMarkers[expr] returns the face markers for a TetGen expression.