MinFilter[image, r] filters image by replacing every value by the minimum in its range r neighborhood. MinFilter[data, r] applies min filtering to an array of data.

MorphologicalPerimeter[image] picks out the morphological perimeter of regions of foreground in image.MorphologicalPerimeter[image, t] treats values above t as foreground.

Names["string"] gives a list of the names of symbols which match the string. Names[patt] gives a list of names matching the arbitrary string pattern patt.

NProduct[f, {i, i_min, i_max}] gives a numerical approximation to the product \[Product]i = i_min i_max f.NProduct[f, {i, i_min, i_max, di}] uses a step di in the product.

ParallelEvaluate[expr] evaluates the expression expr on all available parallel kernels and returns the list of results obtained.ParallelEvaluate[expr, kernel] evaluates expr ...

PlaceholderReplace is an option to Paste that determines whether to replace a selection placeholder with the selected contents.

PrintingStartingPageNumber is an option for notebooks that specifies what number to assign to the first page of a notebook when printed.

PrivatePaths -> {opt_1 -> val_1, opt_2 -> val_2, ...} is a global option that specifies settings for paths private to the notebook front end.

RevolutionAxis is an option for RevolutionPlot3D which specifies the revolution axis around which the curve should be rotated.

SelectedNotebook[] gives the currently selected notebook in the front end.