# Application of Stack

- Expression Evolution
- Expression conversion
- Parsing
- Simulation of recursion
- Fuction call

### Expression Representation

Infix | Prefix | Postfix |
---|---|---|

a + b | + a b | a b + |

a + b * c | + a * b c | a b c * + |

(a + b) * (c - d) | * + a b - c d | a b + c d - * |