Difference between revisions of "Reverse Polish"
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| − | Reverse Polish Notation is a mathematical notation, in which the operator follows the operands. The result is the removal of the need for parenthesis, because each operation only applies to a fixed number of values. | + | Reverse Polish Notation is a mathematical notation, in which the operator follows the operands. The result is the removal of the need for parenthesis, because each operation only applies to a fixed number of values. You start from left to right and move to the first operator, this applies to the 2 previous terms. |
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| + | You then move to the next operator to the right. | ||
For example: | For example: | ||
Revision as of 21:26, 21 May 2017
Reverse Polish Notation is a mathematical notation, in which the operator follows the operands. The result is the removal of the need for parenthesis, because each operation only applies to a fixed number of values. You start from left to right and move to the first operator, this applies to the 2 previous terms.
You then move to the next operator to the right.
For example:
"3 4 +" is equal to 7, 3 + 4 using Infix notation.
"3 4 + 2 *" is equal to 14, (3+4)*2. Because the operator applies to only two values (in this case) before it, there is no need for parenthesis.
