Get to know Pushdown better with 10+ real example sentences, the meaning.
Pushdown in a sentence
Pushdown meaning
Describing a stack in which items are removed in a LIFO manner from the end at which they were added.
Using Pushdown
- The main meaning on this page is: Describing a stack in which items are removed in a LIFO manner from the end at which they were added.
- In the example corpus, pushdown often appears in combinations such as: pushdown automaton, pushdown automata, the pushdown.
Context around Pushdown
- Average sentence length in these examples: 20.1 words
- Position in the sentence: 11 start, 3 middle, 4 end
- Sentence types: 18 statements, 0 questions, 0 exclamations
Corpus analysis for Pushdown
- In this selection, "pushdown" usually appears near the start of the sentence. The average example has 20.1 words, and this corpus slice is mostly made up of statements.
- Around the word, general, deterministic, nondeterministic, automaton, automata and automatons stand out and add context to how "pushdown" is used.
- Recognizable usage signals include a deterministic pushdown automaton with and accepted by pushdown automata pda. That gives this page its own corpus information beyond isolated example sentences.
- By corpus frequency, "pushdown" sits close to words such as abad, abolishment and abr, which helps place it inside the broader word index.
Example types with pushdown
The same corpus examples are grouped by length and sentence type, making it easier to see the contexts in which the word appears:
Computations of the pushdown automaton are sequences of steps. (9 words)
The remainder of this article describes the nondeterministic pushdown automaton. (10 words)
Non-deterministic pushdown automata are another formalism equivalent to context-free grammars. (12 words)
The pushdown automaton either accepts by final state, which means after reading its input the automaton reaches an accepting state (in ), or it accepts by empty stack ( ), which means after reading its input the automaton empties its stack. (38 words)
It is accepted by the pushdown automaton where is defined as follows: meaning of 's arguments and results: Unambiguous CFLs are a proper subset of all CFLs: there are inherently ambiguous CFLs. (32 words)
The subscript M from the step symbol is here omitted. ordered PDA and context-free languages Every context-free grammar can be transformed into an equivalent nondeterministic pushdown automaton. (29 words)
Example sentences (18)
Computations a step of the pushdown automaton In order to formalize the semantics of the pushdown automaton a description of the current situation is introduced.
A linear bounded automaton is a device which is more powerful than a pushdown automaton but less so than a Turing machine.
Computations of the pushdown automaton are sequences of steps.
For each single pushdown automaton these two languages need to have no relation: they may be equal but usually this is not the case.
Formally, the set of all context-free languages is identical to the set of languages accepted by pushdown automata (PDA).
In general pushdown automata are nondeterministic meaning that in a given instantaneous description there may be several possible steps.
In general, pushdown automata may have several computations on a given input string, some of which may be halting in accepting configurations.
It is accepted by the pushdown automaton where is defined as follows: meaning of 's arguments and results: Unambiguous CFLs are a proper subset of all CFLs: there are inherently ambiguous CFLs.
Non-deterministic pushdown automata are another formalism equivalent to context-free grammars.
Parser The parser is a deterministic pushdown automaton with the ability to peek on the next input symbols without reading.
Pushdown automata are used in theories about what can be computed by machines.
Pushdown automata choose a transition by indexing a table by input signal, current state, and the symbol at the top of the stack.
Stack automata can recognize a strictly larger set of languages than pushdown automata.
Taken over all pushdown automata both acceptance conditions define the same family of languages.
The pushdown automaton either accepts by final state, which means after reading its input the automaton reaches an accepting state (in ), or it accepts by empty stack ( ), which means after reading its input the automaton empties its stack.
The remainder of this article describes the nondeterministic pushdown automaton.
These pushdown automatons were also implemented in minicomputers and microprocessors later, which influenced programming language design.
The subscript M from the step symbol is here omitted. ordered PDA and context-free languages Every context-free grammar can be transformed into an equivalent nondeterministic pushdown automaton.
Common combinations with pushdown
These word pairs occur most frequently in English texts: