What is infix , postfix notation ?

Question

This is related to maths .

Answer 1

Infix and postfix operation are mathematical operation if an operator is placed between two operands like x + y then this is an infix expression.

Postfix expression is an expression in which operator is written after operands like above infix can be change in postfix by this way. "x y +" and prefix is another expression in which operator is written before operands. Like "+x y"
Postfix is solved via stack.
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