Replace part 3:

Replace parts 2 and 5:

Replace part of an array:

Replace parts whose positions match a pattern:

Replace parts in any expression:

Use a ReplacePart operator:

Replace a part 3 from the end:

Replace several parts by the same expression:

Part specifications can be patterns:

Replace every part except those with indices 1, 3, or 5:

Replace every part whose index is even:

Replace all elements in the first sublist:

Replace the last element in each sublist:

Replace elements on the diagonal:

Part specification patterns can contain variables that are used in the replacements:

Patterns can represent part lists of variable length:

Replace a part in an association:

Replace all values corresponding to key "x":

Replace the head of an association:

The right-hand side of the rule is evaluated separately for each replacement done:

ReplacePart works with SparseArray objects:

ReplacePart works on heads:

Replace all heads by List:

Border a matrix with x's:

Highlight two squares in an array:

Generate a difference pattern for two cellular automaton initial conditions differing by one bit:

Insert a black cell at a random position at each step:

Successively replace parts of a list:

Successively replace disks in a graphic by circles:

Successively replace entries in a 2D array:

Replace elements whose indices are not relatively prime:

ReplacePart uses rules in the order given:

ReplacePart takes lists of positions in the same form as generated by Position:

ReplacePart takes the same part rules as SparseArray:

ReplacePart rewrites subexpressions at a particular position:

Replace rewrites parts that match a pattern at a particular level:

ReplacePart replaces parts of expressions whose positions match a pattern:

ReplaceAll replaces parts of expressions that themselves match a pattern:

ReplacePart only affects parts that are already present:

Particularly in an Orderless function, the order of parts may change when they are replaced:

Replacing an empty list of positions does not change the expression:

Position {} corresponds to the whole expression:

Replacing the head of an association loses keys:

Extract rules from an association: