DocumentationMathematicaBuilt-in FunctionsLists and MatricesList Operations
Reverse
Reverse[expr] reverses the order of the elements in expr.
Example: Reverse[a, b, c] . Reverse works on SparseArray objects, reversing the elements in the corresponding ordinary array. See Section 1.8.9. See also: Permutations, RotateLeft, RotateRight, StringReverse. New in Version 1.
Further Examples
Reverse[expr] reverses the order of the elements in expr. 
a, b, c
] 
. 