Binary expression tree
（重定向自Expression tree）
![Expression tree](/Images/godic/202501/12/Exp-tree-ex-11.svg0719.png")
![Stack growing from left to right](/Images/godic/202501/12/Exp-tree-ex-2.svg0719.png")
![Formation of a new tree](/Images/godic/202501/12/Exp-tree-ex-3.svg0719.png")
![Creating a one-node tree](/Images/godic/202501/12/Exp-tree-ex-6.svg0719.png")
A binary expression tree is a specific kind of a binary tree used to represent expressions. Two common types of expressions that a binary expression tree can represent are algebraic and boolean. These trees can represent expressions that contain both unary and binary operators.