marjan17 4150 اشتراک گذاری ارسال شده در 26 خرداد، ۱۳۸۹ Palindromes The word palindrome is derived from the Greek palíndromos, meaning running back again (palín = AGAIN + drom–, drameîn = RUN). A palindrome is a word or phrase which reads the same in both directions. Some simple examples are: RACECAR... DEED..... LEVEL ..... PIP ROTOR ...... CIVIC..... POP ........ MADAM EYE ........... NUN ...... RADAR.... TOOT Words like LIVE and STRAW (which read EVIL and WARTSpalindromes but the "phrases" backwards) are not themselves LIVE EVIL and STRAW WARTS are. A palindrome is not necessarily a single word. The longest single English word in common usage which is a palindrome is REDIVIDER, although the contrived chemical term DETARTRATED is two letters longer. In Finnish there is a 25-letter palindromic word: SOLUTOMAATTIMITTAAMOTULOS which means the result from a measurement laboratory for tomatoes, although technically it is a compound of four words. There is also the equally long SAIPPUAKUPPINIPPUKAUPPIAS which means soap cup trader. When creating reversible sentences, it is usually accepted that punctuation and word spacings are ignored, and so the famous MADAM, I'M ADAM is a valid palindrome. Palindrome Varieties There are two other types of palindrome, although neither is particularly common. The first is the word-unit palindrome. As the name suggests, these are palindromes in which the words form the same sentence in either direction, e.g. WOMEN UNDERSTAND MEN; FEW MEN UNDERSTAND WOMEN. Occasionally these are also traditional palindromes, such as in I DID, DID I? but this only happens when each word is itself a traditional palindrome. The other kind of palindrome is the mirrored palindrome. These are palindromes which are graphically reversible. Not all letters in mirrored palindromes necessarily have symmetry about a vertical axis (A, H, I, M, O, T, U, V, W, X) since some letters are (more or less) mirror images of others (e.g. L and J). Therefore a mirrored palindrome is not necessarily also a traditional palindrome. Punctuation and spaces cannot be ignored when creating mirrored palindromes. When reversed A TOYOTA becomes ATOYOT A which, strictly speaking, is not the same. WOT TOW, although fairly meaningless, is a valid mirrored palindrome. Of course, with this type of palindrome, it is important whether upper or lower case letters are used: bid is a mirrored palindrome, but BID is not لینک به دیدگاه
marjan17 4150 مالک اشتراک گذاری ارسال شده در 26 خرداد، ۱۳۸۹ Top 30 Best Palindrome List : Don't nod Dogma: I am God Never odd or even Too bad – I hid a boot Rats live on no evil star No trace; not one carton Was it Eliot's toilet I saw? Murder for a jar of red rum May a moody baby doom a yam? Go hang a salami; I'm a lasagna hog! Satan, oscillate my metallic sonatas! A Toyota! Race fast... safe car: a Toyota Straw? No, too stupid a fad; I put soot on warts Are we not drawn onward, we few, drawn onward to new era? Doc Note: I dissent. A fast never prevents a fatness. I diet on cod No, it never propagates if I set a gap or prevention Anne, I vote more cars race Rome to Vienna Sums are not set as a test on Erasmus Kay, a red nude, peeped under a yak Some men interpret nine memos Campus Motto: Bottoms up, Mac Go deliver a dare, vile dog! Madam, in Eden I'm Adam Oozy rat in a sanitary zoo Ah, Satan sees Natasha Lisa Bonet ate no basil Do geese see God? God saw I was dog Dennis sinned لینک به دیدگاه
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