'Left parenthesis' diaporamas de présentation

Programming Languages and Compilers (CS 421)

Programming Languages and Compilers (CS 421). Grigore Rosu 2110 SC, UIUC http://courses.engr.illinois.edu/cs421. Slides by Elsa Gunter, based in part on slides by Mattox Beckman, as updated by Vikram Adve and Gul Agha. Objective. Learn the basics of ocamlyacc parsing

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Programming Languages and Compilers (CS 421)

Programming Languages and Compilers (CS 421). Elsa L Gunter 2112 SC, UIUC http://courses.engr.illinois.edu/cs421. Based in part on slides by Mattox Beckman, as updated by Vikram Adve and Gul Agha. Using Ocamlyacc. Input attribute grammar is put in file < grammar >.mly Execute

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LESSON 19

LESSON 19. Overview of Previous Lesson(s). Over View. A parse tree is a graphical representation of a derivation that filters out the order in which productions are applied to replace non-terminals The leaves of a parse tree are labeled by non-terminals or terminals and,

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Computer Science 112

Computer Science 112. Fundamentals of Programming II Applications of Stacks. Evaluating Postfix Expressions. Expressions in postfix notation are easier for a computer to evaluate than expressions in infix notation. In postfix notation, the operands precede the operator. The Setup.

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Computer Science 112

Computer Science 112. Fundamentals of Programming II Applications of Stacks. Evaluating Postfix Expressions. Expressions in postfix notation are easier for a computer to evaluate than expressions in infix notation. In postfix notation, the operands precede the operator. The Setup.

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Shunting-yard algorithm

Shunting-yard algorithm. Infix to postfix conversion. Based on http://en.wikipedia.org/wiki/Shunting_yard_algorithm. 2 + (3 * (8 - 4)) = ?. How to evaluate this (or similar) formula?. TODO: rules should be visible and highlighted when a rule is applied

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Infix to postfix conversion

Infix to postfix conversion. Use a loop to read the tokens one by one from a vector infixVect of tokens (strings) representing an infix expression. For each token do the following in the loop: When the token is an operand

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Equation solving, Big numbers

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DCO 20105 Data structures and algorithms

DCO 20105 Data structures and algorithms. Lecture 12: Stack and Expression Evaluation Stack basic operations of a stack its implementation using a vector applications of stack Expression Evaluation Infix, Prefix, and Postfix expressions Implementation of evaluating a postfix expression

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The Stack

The Stack. Alexander G. Chefranov CMPE-231 Spring 2012. Definition and Examples. A stack is an ordered collection of items into which new items may be inserted and from which items may be deleted at one end, called the top of the stack.

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Pascal Programming

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Using a graphing calculator to check simplification problems

Using a graphing calculator to check simplification problems. You can always check your answer to a simplification problem using your calculator (or you can use another method that will be shown here). . This example is taken from the January 2010 Math B Regents (number 13).

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LING/C SC/PSYC 438/538

LING/C SC/PSYC 438/538. Lecture 15 Sandiway Fong. Midterm Instructions. By the end of the class 538 Answer any 5 questions 438 Answer any 4 questions Collect all answers into ONE file and email to sandiway@email.arizona.edu Good luck!. Question 1.

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Warm Up

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