Function Names as Expressions Applying Functions Repeatedly Applying Functions to Lists and Other Expressions
Permutations are among the most basic elements of discrete mathematics. They can be used to represent discrete groups of transformations and in particular play a key role in ...
__(two _characters) or BlankSequence[] is a pattern object that can stand for any sequence of one or more Mathematica expressions. __h or BlankSequence[h] can stand for any ...
DeleteDuplicates[list] deletes all duplicates from list.DeleteDuplicates[list, test] applies test to pairs of elements to determine whether they should be considered ...
ArrayDepth[expr] gives the depth to which expr is a full array, with all the parts at a particular level being lists of the same length, or is a SparseArray object.
RotateRight[expr, n] cycles the elements in expr n positions to the right. RotateRight[expr] cycles one position to the right. RotateRight[expr, {n_1, n_2, ...}] cycles ...
These "How tos" give step-by-step instructions for common tasks related to linear algebra in Mathematica .
Pick
(Built-in Mathematica Symbol) Pick[list, sel] picks out those elements of list for which the corresponding element of sel is True. Pick[list, sel, patt] picks out those elements of list for which the ...
Everything Is an Expression The Meaning of Expressions Special Ways to Input Expressions
Extract
(Built-in Mathematica Symbol) Extract[expr, list] extracts the part of expr at the position specified by list. Extract[expr, {list_1, list_2, ...}] extracts a list of parts of expr. Extract[expr, list, h] ...