## Can Turing machine accepts palindrome?

For an even-length palindrome a TM is defined after the machine runs and erases the first and last element without encountering a mismatch. Later on the turing machine accepts the string and the string is even-length palindrome.

**What is even and odd palindrome?**

An Even-Odd Palindrome string is defined to be a string whose characters at even indices form a Palindrome while the characters at odd indices also form a Palindrome separately.

### Are palindromes Turing decidable?

(Recall that a palindrome is a string which reads the same backward as forward.) Proof: We disprove that PALINDROMES is decidable. The property of accepting palindromes is nontrivial because the set of Turing machines that accept palindromes is a proper subset of all RE languages.

**What are the different types of Turing machine?**

Multiple track Turing Machine:

#### What is palindrome number?

A palindromic number (also known as a numeral palindrome or a numeric palindrome) is a number (such as 16461) that remains the same when its digits are reversed.

**What is Multitape Turing machine explain with example?**

A multi-tape Turing machine is a variant of the Turing machine that utilizes several tapes. Each tape has its own head for reading and writing. Initially, the input appears on tape 1, and the others start out blank.

## Can an odd number be palindrome?

A palindrome can contain either an even number of letters (for example, abbbba) or an odd number of letters (for example, ababa).

**Do palindromes have to be odd in length?**

If it is a palindrome then it must of odd length.

### Which of the following can accept even palindrome over AB?

Explanation: The composite TM accepts the language of palindromes over {a, b} by comparing the input string to its reverse and accepting if and only if the two are equal.

**How many types of representation are there in Turing machine?**

A Turing machine can move both left and right from one cell to another. A Turing can have three types of action upon an input. Print Si, move one square to the left (L) and go to state qj. Print Si, move one square to the right (R) and go to state qj.

#### What is palindrome example?

The most familiar palindromes in English are character-unit palindromes. The characters read the same backward as forward. Some examples of palindromic words are redivider, deified, civic, radar, level, rotor, kayak, reviver, racecar, madam, and refer.

**What’s a palindrome word?**

: a word, phrase, sentence, or number that reads the same backward or forward “Step on no pets” is a palindrome.

## What is the difference between deterministic Turing machine and non deterministic Turing machine?

In a deterministic Turing machine, the set of rules impose at most one action to be performed for any given situation. In a nondeterministic Turing machine, it may have a set of rules that prescribes more than one action for a given situation.

**How many odd 4 digit palindromes are there?**

There are likewise 90 palindromic numbers with four digits (again, 9 choices for the first digit multiplied by ten choices for the second digit.

### Can palindromes have odd number of letters?

**Can palindromes be even length?**

Nth Even length Palindrome Number

11,22,33,44,55,66,77,88,99,1001, etc. are some examples of even length palindrome numbers. We can also define it as first-half digits should be equal to second-half digits.

#### What are palindromes give example?

A palindrome is a word, number, phrase, or other sequence of characters which reads the same backward as forward, such as madam or racecar. There are also numeric palindromes, including date/time stamps using short digits 11/11/11 11:11 and long digits 02/02/2020.

**Which one of the following machine can check for even length palindrome?**

A string w is called palindrome if reading w from left to right gives the same result as reading w from right to left.An even palindrome has even number of symbols.

## What are the languages accepted by turing machine?

The turing machine accepts all the language even though they are recursively enumerable. Recursive means repeating the same set of rules for any number of times and enumerable means a list of elements.

**Can a DFA recognize a odd palindrome string?**

9. Can a DFA recognize a palindrome number? Explanation: Language to accept a palindrome number or string will be non-regular and thus, its DFA cannot be obtained.

### What are the 7 tuples of Turing machine?

A TM is expressed as a 7-tuple (Q, T, B, ∑, δ, q0, F) where: Q is a finite set of states. T is the tape alphabet (symbols which can be written on Tape)

**What are 3 examples of a palindrome?**

Common palindromic—that’s the adjective for palindrome—words include: noon, civic, racecar, level, and mom. The Finnish word for “soapstone vendor” is supposedly the longest palindrome in everyday use: saippuakivikauppias.

#### How many palindromes are there?

There are 90 palindromic numbers with three digits (Using the Rule of product: 9 choices for the first digit – which determines the third digit as well – multiplied by 10 choices for the second digit): {101, 111, 121, 131, 141, 151, 161, 171, 181, 191, …, 909, 919, 929, 939, 949, 959, 969, 979, 989, 999}

**What is deterministic and non deterministic?**

A deterministic function always returns the same results if given the same input values. A nondeterministic function may return different results every time it is called, even when the same input values are provided.

## Do non-deterministic Turing machines exist?

The concept of Non Deterministic Turing Machine is purely theoretical – there is no non-deterministic turing machine available.