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The reverse of a string is a string with the same symbols but in reverse order. For example, if s = abc (where a, b, and c are symbols of the alphabet), then the reverse of s is cba. A string that is the reverse of itself (e.g., s = madam) is called a palindrome, which also includes the empty string and all strings of length 1.
String functions are used in computer programming languages to manipulate a string or query information about a string (some do both).. Most programming languages that have a string datatype will have some string functions although there may be other low-level ways within each language to handle strings directly.
Phonetic reversal is the process of reversing the phonemes or phones of a word or phrase. When the reversal is identical to the original, the word or phrase is called a phonetic palindrome. Phonetic reversal is not entirely identical to backmasking, which is specifically the reversal of recorded sound.
The word redrum (i.e., "red rum") is used this way for murder in the Stephen King novel The Shining (1977) and its film adaptation (1980). [11] Anadromes exist in other written languages as well, as can be seen, for example, in Spanish orar ↔ raro or French l'ami naturel ("the natural friend") ↔ le rut animal ("the animal rut").
Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})
For instance, the Albartus USD algorithm example seen in the "Examples" section below has k, T, t, and R still in their upright positions. Another issue with USD encoding is the use of italic type . The letter "a" will, in most typefaces using italic fonts, render it as a "one-story" Latin alpha , thus causing problems with any word using that ...
The result for the above examples would be (in reverse Polish notation) "3 4 +" and "3 4 2 1 − × +", respectively. The shunting yard algorithm will correctly parse all valid infix expressions, but does not reject all invalid expressions. For example, "1 2 +" is not a valid infix expression, but would be parsed as "1 + 2". The algorithm can ...
Applications of reverse word dictionaries include: Simple rhyming dictionaries, to the extent that spelling predicts pronunciation. Finding words with a given suffix (i.e., meaningful ending), like -ment. Finding words with the same ending as a given word, even if the sequence is not meaningful.