1. Converting Infix to Prefix Infix, Postfix and Prefix notations are three different but equivalent ways of writing expressions. In Infix notations, operators are written in-between their operands. However, in Prefix expressions, the operator comes before the operands. Assume the infix expression is a string of tokens delimited by spaces. The operator tokens are *, /, +, and -, along with the left and right parentheses, ( and ). The operand tokens are the single-character identifiers A, B, C, and so on. The following steps will produce a string of tokens in prefix order: 1. Reverse the infix expression i.e A + B * C will become C * B + A. Note while reversing each "(' will become ' and each ) becomes '('. 2. Obtain the postfix expression of the modified expression I.e CB * A +, 3. Reverse the postfix expression. Hence in our example prefix is + A * B C.
1. Converting Infix to Prefix Infix, Postfix and Prefix notations are three different but equivalent ways of writing expressions. In Infix notations, operators are written in-between their operands. However, in Prefix expressions, the operator comes before the operands. Assume the infix expression is a string of tokens delimited by spaces. The operator tokens are *, /, +, and -, along with the left and right parentheses, ( and ). The operand tokens are the single-character identifiers A, B, C, and so on. The following steps will produce a string of tokens in prefix order: 1. Reverse the infix expression i.e A + B * C will become C * B + A. Note while reversing each "(' will become ' and each ) becomes '('. 2. Obtain the postfix expression of the modified expression I.e CB * A +, 3. Reverse the postfix expression. Hence in our example prefix is + A * B C.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Write a function Infix_to_Prefix that takes an arithmetic expression in Infix notation as a parameter and returns the corresponding arithmetic expression with Prefix notation.
Note: question explanation, sample input, and output are attached below. Kindly answer this question using python. Don't use classes
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education