Colorize[m] generates an image from an integer matrix m, using colors for positive integers and black for non-positive integers.Colorize[image] replaces intensity values in ...

ComplexityFunction is an option for Simplify and other functions which gives a function to rank the complexity of different forms of an expression.

Count[list, pattern] gives the number of elements in list that match pattern. Count[expr, pattern, levelspec] gives the total number of subexpressions matching pattern that ...

DeleteDuplicates[list] deletes all duplicates from list.DeleteDuplicates[list, test] applies test to pairs of elements to determine whether they should be considered ...

Delete[expr, n] deletes the element at position n in expr. If n is negative, the position is counted from the end. Delete[expr, {i, j, ...}] deletes the part at position {i, ...

DeleteSmallComponents[image] replaces small connected components in a binary image image with background pixels.DeleteSmallComponents[m] replaces positive integers in a label ...

Diagonal[m] gives the list of elements on the leading diagonal of the matrix m.Diagonal[m, k] gives the elements on the k\[Null]^th diagonal of m.

Dispatch[{lhs_1 -> rhs_1, lhs_2 -> rhs_2, ...}] generates an optimized dispatch table representation of a list of rules. The object produced by Dispatch can be used to give ...

EdgeDetect[image] finds edges in image and returns the result as a binary image.EdgeDetect[image, r] finds edges at the scale of the specified pixel range r.EdgeDetect[image, ...

EditDistance[u, v] gives the edit or Levenshtein distance between strings or vectors u and v.