In computer science, a grammar is informally called a recursive grammar if it contains production rules that are recursive, meaning that expanding a non-terminal according to these rules can eventually lead to a string that includes the same non-terminal again. Otherwise it is called a non-recursive grammar. For example, a grammar for a context-free language is left recursive if there exists a non-terminal symbol A that can be put through the production rules to produce a string with A (as the leftmost symbol).All types of grammars in the Chomsky hierarchy can be recursive and it is recursion that allows the production of infinite sets of words. (Wikipedia).
SYN_018 - Linguistic Micro-Lectures: Recursion
In this short micro-lecture, Victoria Galarneau, one of Prof. Handke's students, discusses the term 'recursion', a central notion in syntax.
From playlist Micro-Lectures - Syntax
How to use the recursive formula to evaluate the first five terms
π Learn all about recursive sequences. Recursive form is a way of expressing sequences apart from the explicit form. In the recursive form of defining sequences, each term of a sequence is expressed in terms of the preceding term unlike in the explicit form where each term is expressed in
From playlist Sequences
Applying the recursive formula to a sequence to determine the first five terms
π Learn all about recursive sequences. Recursive form is a way of expressing sequences apart from the explicit form. In the recursive form of defining sequences, each term of a sequence is expressed in terms of the preceding term unlike in the explicit form where each term is expressed in
From playlist Sequences
Applying the recursive formula to a geometric sequence
π Learn all about recursive sequences. Recursive form is a way of expressing sequences apart from the explicit form. In the recursive form of defining sequences, each term of a sequence is expressed in terms of the preceding term unlike in the explicit form where each term is expressed in
From playlist Sequences
How to determine the first five terms for a recursive sequence
π Learn all about recursive sequences. Recursive form is a way of expressing sequences apart from the explicit form. In the recursive form of defining sequences, each term of a sequence is expressed in terms of the preceding term unlike in the explicit form where each term is expressed in
From playlist Sequences
How to find the first four terms of a recursive formula
π Learn all about recursive sequences. Recursive form is a way of expressing sequences apart from the explicit form. In the recursive form of defining sequences, each term of a sequence is expressed in terms of the preceding term unlike in the explicit form where each term is expressed in
From playlist Sequences
Learn how to find the first five terms of a sequence using the recursive formula
π Learn all about recursive sequences. Recursive form is a way of expressing sequences apart from the explicit form. In the recursive form of defining sequences, each term of a sequence is expressed in terms of the preceding term unlike in the explicit form where each term is expressed in
From playlist Sequences
Using the recursive formula to find the first four terms of a sequence
π Learn all about recursive sequences. Recursive form is a way of expressing sequences apart from the explicit form. In the recursive form of defining sequences, each term of a sequence is expressed in terms of the preceding term unlike in the explicit form where each term is expressed in
From playlist Sequences
Recursively Defined Sets - An Intro
Recursively defined sets are an important concept in mathematics, computer science, and other fields because they provide a framework for defining complex objects or structures in a simple, iterative way. By starting with a few basic objects and applying a set of rules repeatedly, we can g
From playlist All Things Recursive - with Math and CS Perspective
LoneStarRuby Conf 2008 - Grammar a BNF like Ruby DSL Parsing 960x368 by: Eric Mahurin
Grammar a BNF like Ruby DSL Parsing 960x368 by: Eric Mahurin Help us caption & translate this video! http://amara.org/v/G13L/
From playlist Lone Star Ruby Conference 2008
ElixirConf 2015 - The road to intellij-elixir 1.0.0 By Luke Imhoff
Learn how naively copying a grammar file from one parser generator to another won't work. Go back to the beginning and learn about lexers vs parsers, but discover that the power of interpolation changes the computational complexity and forces the lexer to be a push-down automata instead of
From playlist ElixirConf 2015
Writing a PEG Parser For Fun and Profit
Parsing Expression Grammars (PEGs) are a relatively new formalism for describing grammars suitable for automatically generating efficient parsers. I've become interested in using a PEG-generated parser as an alternative to CPython's nearly 30 year old "pgen" parser generator. This poses so
From playlist Python
Python - Analyzing Sentence Structure
Lecturer: Dr. Erin M. Buchanan Summer 2019 https://www.patreon.com/statisticsofdoom This video covers how to analyze sentence structure using Python and nltk. This video scales up the parsing discussion from the previous chapter, looking more at parse trees and how to parse effectively. Y
From playlist Natural Language Processing
Compiler Design | L - 9 | Operator grammar & Operator precedence parser | CS/IT #RavindrababuRaula
Click for free access to Educator's best classes: : https://www.unacademy.com/a/Best-Classes-of-all-time-by-Vishvadeep-Gothi-CS.html For regular updates follow : https://unacademy.com/community/Q3ZGJY/ To purchase please click : https://unacademy.onelink.me/081J/zv9co3u1
From playlist Compiler Design
Executable Grammars: Seeking the minimal extensible self-compiling compiler
(March 4, 2009) Bill McKeeman talks about the smallest extendable self-compiling compiler. Stanford University: http://www.stanford.edu/ Stanford School of Engineering: http://engineering.stanford.edu/ EE380: Computer Systems Colloquium: http://ee380.stanford.edu/ Stanford Center for P
From playlist Engineering
Coding Challenge #43: Context-Free Grammar
In this Coding Challenge, I code a Context-Free Grammar text generator from scratch. The concept of recursion is explored. This video is part of Session 7 of the "Programming from A to Z" ITP class. π»Challenge Website: https://thecodingtrain.com/CodingChallenges/043-contextfreegrammar.ht
From playlist Programming with Text - All Videos
Theory of Computation 5. Context Free Languages ADUni
From playlist [Shai Simonson]Theory of Computation
In this tool-assisted education video I create a parser in C++ for a B-like programming language using GNU Bison. For the lexicographical analysis, a lexer is generated using re2c. This is part of a multi-episode series. In the next video, we will focus on optimization. Become a member:
From playlist Creating a Compiler
(February 9, 2011) Matthew Might focuses on a new way to write parsers and how it will affect computer science in the future. Might discusses these parsers and overall language theory, to help explain how there is demand for better parsing tools and how computer science will be improved in
From playlist Engineering
Determining the first five terms of a geometric recursive formula
π Learn all about recursive sequences. Recursive form is a way of expressing sequences apart from the explicit form. In the recursive form of defining sequences, each term of a sequence is expressed in terms of the preceding term unlike in the explicit form where each term is expressed in
From playlist Sequences