There are also double rotations, which are combinations of left and right rotations. A double left rotation at X can be defined to be a right rotation at the right child of X followed by a left rotation at X; similarly, a double right rotation at X can be defined to be a left rotation at the left child of X followed by a right rotation at X.
There are also double rotations which are combinations of left and right rotations A double left rotation at X can be defined to be a right rotation at the right child of X followed by a left rotation at X; similarly a double right rotation at X can be defined to be a left rotation at the left child of X followed by a right rotation at X