CharacterEncodingsPath is a global option that specifies which directories are searched for character encoding files.
CloseKernels[] terminates all parallel kernels from the list Kernels[].CloseKernels[k] terminates the kernel k.CloseKernels[{k_1, k_2, ...}] terminates the kernels k_1, k_2, ...
ClosingAutoSave is an option for notebooks that specifies whether a notebook is automatically saved when it is closed.
Contexts[] gives a list of all contexts. Contexts["string"] gives a list of the contexts that match the string.
CreateDocument[] creates an empty document notebook and opens it in the front end.CreateDocument[expr] creates and opens a document notebook containing the expression ...
CreateWindow[] creates an empty window in the front end.CreateWindow[nb] creates a window displaying the notebook expression nb, and opens it in the front ...
DefaultNotebook is a global option that specifies which notebook is used as a template for all new notebooks.
Definition[symbol] prints as the definitions given for a symbol.
DeletionWarning is an option for InterpretationBox or TagBox objects that specifies whether a warning is issued if the box is deleted.
DerivativeFilter[image, {n_1, n_2}] computes the n_i\[Null]^th derivative of image in the vertical and horizontal directions.DerivativeFilter[image, {n_1, n_2}, \[Sigma]] ...