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52-616: Name in Greek mythology This article is about the Greek name "Δίκτυς" in mythology. For the pretended historian of the Trojan War, see Dictys Cretensis . For the model organism soil amoeba, see Dictyostelium discoideum . Dictys ( Ancient Greek : Δίκτυς , Díktus ) was a name attributed to four men in Greek mythology . Dictys, a fisherman and brother of King Polydectes of Seriphos , both being

104-467: A 12-digit Standard Book Number of 345-24223-8-595 (valid SBN: 345-24223-8, ISBN: 0-345-24223-8), and it cost US$ 5.95 . Since 1 January 2007, ISBNs have contained thirteen digits, a format that is compatible with " Bookland " European Article Numbers , which have 13 digits. Since 2016, ISBNs have also been used to identify mobile games by China's Administration of Press and Publication . The United States , with 3.9 million registered ISBNs in 2020,

156-647: A Q. Arcadius Rufus, in which the writer, giving a condensed version of the discovery tale, informs his friend that, the volume having fallen into his hands, he had been induced, for his own amusement and the instruction of others, to convert it into Latin. The modern editor, Werner Eisenhut, surmises that the two groups, neither of which is to be consistently preferred to the other, represent two published editions in Late Antiquity . There are retranslations into Greek of Byzantine date, embodied in universal histories, of which Smith adds, "We may add to this account, that

208-467: A different ISBN, but an unchanged reprint of the hardcover edition keeps the same ISBN. The ISBN is ten digits long if assigned before 2007, and thirteen digits long if assigned on or after 1 January 2007. The method of assigning an ISBN is nation-specific and varies between countries, often depending on how large the publishing industry is within a country. The first version of the ISBN identification format

260-400: A given ISBN is complicated, because most of the parts do not use a fixed number of digits. ISBN issuance is country-specific, in that ISBNs are issued by the ISBN registration agency that is responsible for that country or territory regardless of the publication language. The ranges of ISBNs assigned to any particular country are based on the publishing profile of the country concerned, and so

312-658: A list of Greek mythological figures with the same or similar names. If an internal link for a specific Greek mythology article referred you to this page, you may wish to change the link to point directly to the intended Greek mythology article, if one exists. Retrieved from " https://en.wikipedia.org/w/index.php?title=Dictys&oldid=1253993330 " Categories : Set index articles on Greek mythology Kings in Greek mythology Centaurs Mythology of Dionysus Elean mythology Metamorphoses into animals in Greek mythology Serifos Hidden categories: Articles with short description Short description

364-586: A sacred precinct of Perseus in Athens . Dictys, one of the sailors who tried to abduct Dionysus but was turned into a dolphin by the god. Dictys, a centaur who attended Pirithous ' wedding and battled against the Lapiths . While fleeing Pirithous , he slipped and fell off of a cliff. He was impaled on the top of an ash tree and died. Dictys, the Elean son of Poseidon and Agamede , daughter of Augeas . He

416-494: A similar kind, the International Standard Serial Number (ISSN), identifies periodical publications such as magazines and newspapers . The International Standard Music Number (ISMN) covers musical scores . The Standard Book Number (SBN) is a commercial system using nine-digit code numbers to identify books. In 1965, British bookseller and stationers WHSmith announced plans to implement

468-468: A standard numbering system for its books. They hired consultants to work on their behalf, and the system was devised by Gordon Foster , emeritus professor of statistics at Trinity College Dublin . The International Organization for Standardization (ISO) Technical Committee on Documentation sought to adapt the British SBN for international use. The ISBN identification format was conceived in 1967 in

520-401: A systematic pattern, which allows their length to be determined, as follows: A check digit is a form of redundancy check used for error detection , the decimal equivalent of a binary check bit . It consists of a single digit computed from the other digits in the number. The method for the 10-digit ISBN is an extension of that for SBNs, so the two systems are compatible; an SBN prefixed with

572-461: A zero (the 10-digit ISBN) will give the same check digit as the SBN without the zero. The check digit is base eleven, and can be an integer between 0 and 9, or an 'X'. The system for 13-digit ISBNs is not compatible with SBNs and will, in general, give a different check digit from the corresponding 10-digit ISBN, so does not provide the same protection against transposition. This is because the 13-digit code

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624-564: A zero to a 9-digit SBN creates a valid 10-digit ISBN. The national ISBN agency assigns the registrant element ( cf. Category:ISBN agencies ) and an accompanying series of ISBNs within that registrant element to the publisher; the publisher then allocates one of the ISBNs to each of its books. In most countries, a book publisher is not legally required to assign an ISBN, although most large bookstores only handle publications that have ISBNs assigned to them. The International ISBN Agency maintains

676-477: Is 7, and the complete sequence is ISBN 978-0-306-40615-7. In general, the ISBN check digit is calculated as follows. Let Then This check system—similar to the UPC check digit formula—does not catch all errors of adjacent digit transposition. Specifically, if the difference between two adjacent digits is 5, the check digit will not catch their transposition. For instance, the above example allows this situation with

728-400: Is a multiple of 11. That is, if x i is the i th digit, then x 10 must be chosen such that: For example, for an ISBN-10 of 0-306-40615-2: Formally, using modular arithmetic , this is rendered It is also true for ISBN-10s that the sum of all ten digits, each multiplied by its weight in ascending order from 1 to 10, is a multiple of 11. For this example: Formally, this

780-485: Is a numeric commercial book identifier that is intended to be unique. Publishers purchase or receive ISBNs from an affiliate of the International ISBN Agency. A different ISBN is assigned to each separate edition and variation of a publication, but not to a simple reprinting of an existing item. For example, an e-book , a paperback and a hardcover edition of the same book must each have

832-424: Is available on the International ISBN Agency website. A list for a few countries is given below: The ISBN registration group element is a 1-to-5-digit number that is valid within a single prefix element (i.e. one of 978 or 979), and can be separated between hyphens, such as "978-1-..." . Registration groups have primarily been allocated within the 978 prefix element. The single-digit registration groups within

884-414: Is different from Wikidata Articles containing Ancient Greek (to 1453)-language text All set index articles Dictys Cretensis In the 4th century AD a certain Q. Septimius brought out Dictys Cretensis Ephemeris belli Trojani ("Dictys of Crete, chronicle of the Trojan War") in six books, a work that professed to be a Latin translation of the Greek version. Its chief interest lies in

936-402: Is not needed, but it may be considered to simplify the calculation.) For example, the check digit for the ISBN of 0-306-40615- ? is calculated as follows: Thus the check digit is 2. It is possible to avoid the multiplications in a software implementation by using two accumulators. Repeatedly adding t into s computes the necessary multiples: The modular reduction can be done once at

988-586: Is now the Codex Parisinus Lat. 5690, in the Bibliothèque nationale . The first printed edition was early, not after 1471. Modern scholars were in disagreement as to whether any Greek original really existed; but all doubt on the point was removed by the discovery of a fragment in Greek amongst the Tebtunis papyri found by Bernard Grenfell and Arthur Hunt in 1899–1900. It revealed that

1040-414: Is rendered The two most common errors in handling an ISBN (e.g. when typing it or writing it down) are a single altered digit or the transposition of adjacent digits. It can be proven mathematically that all pairs of valid ISBN-10s differ in at least two digits. It can also be proven that there are no pairs of valid ISBN-10s with eight identical digits and two transposed digits (these proofs are true because

1092-415: The publisher , "01381" is the serial number assigned by the publisher, and "8" is the check digit . By prefixing a zero, this can be converted to ISBN   0-340-01381-8 ; the check digit does not need to be re-calculated. Some publishers, such as Ballantine Books , would sometimes use 12-digit SBNs where the last three digits indicated the price of the book; for example, Woodstock Handmade Houses had

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1144-448: The 13-digit ISBN, as follows: A 13-digit ISBN can be separated into its parts ( prefix element , registration group , registrant , publication and check digit ), and when this is done it is customary to separate the parts with hyphens or spaces. Separating the parts ( registration group , registrant , publication and check digit ) of a 10-digit ISBN is also done with either hyphens or spaces. Figuring out how to correctly separate

1196-432: The 6 followed by a 1. The correct order contributes 3 × 6 + 1 × 1 = 19 to the sum; while, if the digits are transposed (1 followed by a 6), the contribution of those two digits will be 3 × 1 + 1 × 6 = 9 . However, 19 and 9 are congruent modulo 10, and so produce the same, final result: both ISBNs will have a check digit of 7. The ISBN-10 formula uses the prime modulus 11 which avoids this blind spot, but requires more than

1248-473: The 978-prefix element are: 0 or 1 for English-speaking countries; 2 for French-speaking countries; 3 for German-speaking countries; 4 for Japan; 5 for Russian-speaking countries; and 7 for People's Republic of China. Example 5-digit registration groups are 99936 and 99980, for Bhutan. The allocated registration groups are: 0–5, 600–631, 65, 7, 80–94, 950–989, 9910–9989, and 99901–99993. Books published in rare languages typically have longer group elements. Within

1300-583: The 979 prefix element, the registration group 0 is reserved for compatibility with International Standard Music Numbers (ISMNs), but such material is not actually assigned an ISBN. The registration groups within prefix element 979 that have been assigned are 8 for the United States of America, 10 for France, 11 for the Republic of Korea, and 12 for Italy. The original 9-digit standard book number (SBN) had no registration group identifier, but prefixing

1352-416: The ISBN is less than eleven digits long and because 11 is a prime number ). The ISBN check digit method therefore ensures that it will always be possible to detect these two most common types of error, i.e., if either of these types of error has occurred, the result will never be a valid ISBN—the sum of the digits multiplied by their weights will never be a multiple of 11. However, if the error were to occur in

1404-513: The International ISBN Agency as the registration authority for ISBN worldwide and the ISBN Standard is developed under the control of ISO Technical Committee 46/Subcommittee 9 TC 46/SC 9 . The ISO on-line facility only refers back to 1978. An SBN may be converted to an ISBN by prefixing the digit "0". For example, the second edition of Mr. J. G. Reeder Returns , published by Hodder in 1965, has "SBN 340 01381 8" , where "340" indicates

1456-531: The Latin was a close translation. The other surprise was the discovery, in the library of conte Aurelio Guglielmo Balleani at Jesi , of a manuscript of Dictys, dating to the latter part of the ninth century, that was described and collated by C. Annibaldi in 1907. For a medieval source on the Trojan War that is uniquely independent of Dictys and Dares, see the " Rawlinson Excidium Troie ". ISBN (identifier) The International Standard Book Number ( ISBN )

1508-616: The Perseus Digital Library Pausanias, Graeciae Descriptio. 3 vols . Leipzig, Teubner. 1903. Greek text available at the Perseus Digital Library . Publius Ovidius Naso , Metamorphoses translated by Brookes More (1859-1942). Boston, Cornhill Publishing Co. 1922. Online version at the Perseus Digital Library. Publius Ovidius Naso, Metamorphoses. Hugo Magnus. Gotha (Germany). Friedr. Andr. Perthes. 1892. Latin text available at

1560-5170: The Perseus Digital Library . v t e Metamorphoses in Greek mythology Animals Avian Abas Acanthis Acanthus Acmon Aëdon Aegolius Aegypius Aëtos Aesacus Agrius and Oreius Agron Alcander Alcyone Alcyone and Ceyx Alcyonides Alectryon Anthus Antigone Argus Arne Sithonis Artemiche Ascalaphus Asteria Autonous Botres Bulis Byssa Caeneus Celeus Cerberus Chelidon Cinyras Clinis Combe Corone Ctesylla Cycnus of Aetolia Cycnus of Ares Cycnus of Colonae Cycnus of Liguria Daedalion Erinoma Erodius Eumelus Gerana Harmothoë Harpalyce Harpasus Harpe Hierax Hippodamia Hyperippe Hyria Ictinus Idas Ino Itys Iynx Laius Lelante Lycius Lycus Megaletor Meleagrids Memnonides Meropis Merops Minyades Munichus Neophron Nisus Nyctaea Nyctimene Oenoe Oenotropae Ortygius Pandareus Pelia Perdix Periphas Peristera Picus Pierides Phene Philaeus Philomela Pleiades Polyphonte Polytechnus Procne Rhexenor Schoeneus Scylla Tereus Timandra Non-avian Abas Actaeon Arachne Arcas Arge Aristaeus Ascalabus Atalanta Cadmus Calchus Callisto Cephissus Cerambus Cercopes Chelone Circe Curetes Cynosura Galanthis Gale Harmonia Hecuba Helice Hippomenes Io Lycaon Lycian peasants Lyncus Melanippe Melian nymphs Melissa Minyades Myia Myrmex Naïs Nerites Ocyrhoe Odysseus Pentheus Phalanx Phineus Phoenice Pompilus Taygete Theophane Tiresias Titanis Tithonus Tyrrhenian pirates Aethalides Alcimedon Dictys Epopeus Melas Medon Opheltes [REDACTED] [REDACTED] [REDACTED] Base appearance Achilles Antigone Charybdis Lamia Medusa Midas Mulberry fruit Phaon Scylla Sirens White raven Humanoids Arne Calliste Cymodoce Cephalus' wife Galatea Leleges Myrmidons Nephele Spartoi Weasel Inanimate objects Aconteus Aglaurus Alcmene Anaxarete Ariadne Arsinoë Aspalis Battus Britomartis Calydon Cercopes Cragaleus Daphnis Iodame Laelaps Lethaea Lyco and Orphe Olenus Pallas Pandareus Phineus Polydectes Proetus Propoetides Pyrrhus Teumessian fox Wolf Landforms Achelous Acheron Acis Aea Alope Alpheus Arethusa (Boeotia) Arethusa (Elis) Arethusa (Ithaca) Asteria Atlas Aura Byblis Calliste Castalia Chione Cleite Comaetho Cyane Dirce Haemus Lichas Lilaeus Manto Marsyas Menippe and Metioche Niobe Perimele Pirene Pyramus and Thisbe Rhodope Rhodopis Sangas Selemnus Sybaris Opposite sex Caeneus Hermaphroditus Iphis Leucippus Salmacis Siproites Sithon Tiresias Plants Adonis Agdistis Ajax Amaracus Ambrosia Ampelus Anethus Attis Baucis and Philemon Calamus Carpus Carya Cissus Clytie Crocus Cyparissus Daphne Diopatra Dryope Elaea Elate Eteocleides Heliades Aegle Dioxippe Lampetia Merope Phaethusa Phoebe Hesperides Aegle Erytheia Hyacinthus Leuce Leucothoe Libanus Lotis Lycurgus Mecon Melos Messapians Milk Minthe Myrice Myrina Myrsine Narcissus Oechalides Philyra Phyllis Picolous Pitys Platanus Psalacantha Saliva Side Smilax Smyrna Spear Syceus Syrinx Voluntary Greek gods Kobalos Mestra Periclymenus Other Cumaean Sibyl Echo Hyades Hylas Milk of Hera Pleiades False myths Acantha Amethyste Orchis Rhodanthe Metamorphoses [REDACTED] [REDACTED] This article includes

1612-675: The Perseus Digital Library. Greek text available from the same website . Gaius Julius Hyginus , Fabulae from The Myths of Hyginus translated and edited by Mary Grant. University of Kansas Publications in Humanistic Studies. Online version at the Topos Text Project. Pausanias , Description of Greece with an English Translation by W.H.S. Jones, Litt.D., and H.A. Ormerod, M.A., in 4 Volumes. Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1918. ISBN   0-674-99328-4 . Online version at

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1664-520: The United Kingdom by David Whitaker (regarded as the "Father of the ISBN") and in 1968 in the United States by Emery Koltay (who later became director of the U.S. ISBN agency R. R. Bowker ). The 10-digit ISBN format was developed by the ISO and was published in 1970 as international standard ISO 2108. The United Kingdom continued to use the nine-digit SBN code until 1974. ISO has appointed

1716-657: The allocations of ISBNs that they make to publishers. For example, a large publisher may be given a block of ISBNs where fewer digits are allocated for the registrant element and many digits are allocated for the publication element; likewise, countries publishing many titles have few allocated digits for the registration group identifier and many for the registrant and publication elements. Here are some sample ISBN-10 codes, illustrating block length variations. English-language registration group elements are 0 and 1 (2 of more than 220 registration group elements). These two registration group elements are divided into registrant elements in

1768-466: The check digit itself). Each digit, from left to right, is alternately multiplied by 1 or 3, then those products are summed modulo 10 to give a value ranging from 0 to 9. Subtracted from 10, that leaves a result from 1 to 10. A zero replaces a ten, so, in all cases, a single check digit results. For example, the ISBN-13 check digit of 978-0-306-40615- ? is calculated as follows: Thus, the check digit

1820-419: The check digit must equal either 0 or 11. Therefore, the check digit is (11 minus the remainder of the sum of the products modulo 11) modulo 11. Taking the remainder modulo 11 a second time accounts for the possibility that the first remainder is 0. Without the second modulo operation, the calculation could result in a check digit value of 11 − 0 = 11 , which is invalid. (Strictly speaking, the first "modulo 11"

1872-411: The complete sequence is ISBN 0-306-40615-2. If the value of x 10 {\displaystyle x_{10}} required to satisfy this condition is 10, then an 'X' should be used. Alternatively, modular arithmetic is convenient for calculating the check digit using modulus 11. The remainder of this sum when it is divided by 11 (i.e. its value modulo 11), is computed. This remainder plus

1924-478: The details of over one million ISBN prefixes and publishers in the Global Register of Publishers . This database is freely searchable over the internet. Publishers receive blocks of ISBNs, with larger blocks allotted to publishers expecting to need them; a small publisher may receive ISBNs of one or more digits for the registration group identifier, several digits for the registrant, and a single digit for

1976-437: The end, as shown above (in which case s could hold a value as large as 496, for the invalid ISBN 99999-999-9-X), or s and t could be reduced by a conditional subtract after each addition. Appendix 1 of the International ISBN Agency's official user manual describes how the 13-digit ISBN check digit is calculated. The ISBN-13 check digit, which is the last digit of the ISBN, must range from 0 to 9 and must be such that

2028-783: The fact that, as knowledge of Greek waned and disappeared in Western Europe , this and the De excidio Trojae of Dares Phrygius were the sources from which the Homeric legends were transmitted to the Romance literature of the Middle Ages . An elaborate frame story presented in the prologue to the Latin text details how the manuscript of this work, written in Phoenician characters on tablets of limewood or tree bark, survived: it

2080-502: The publication element. Once that block of ISBNs is used, the publisher may receive another block of ISBNs, with a different registrant element. Consequently, a publisher may have different allotted registrant elements. There also may be more than one registration group identifier used in a country. This might occur once all the registrant elements from a particular registration group have been allocated to publishers. By using variable block lengths, registration agencies are able to customise

2132-428: The publishing house and remain undetected, the book would be issued with an invalid ISBN. In contrast, it is possible for other types of error, such as two altered non-transposed digits, or three altered digits, to result in a valid ISBN (although it is still unlikely). Each of the first nine digits of the 10-digit ISBN—excluding the check digit itself—is multiplied by its (integer) weight, descending from 10 to 2, and

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2184-475: The ranges will vary depending on the number of books and the number, type, and size of publishers that are active. Some ISBN registration agencies are based in national libraries or within ministries of culture and thus may receive direct funding from the government to support their services. In other cases, the ISBN registration service is provided by organisations such as bibliographic data providers that are not government funded. A full directory of ISBN agencies

2236-405: The same book must each have a different ISBN assigned to it. The ISBN is thirteen digits long if assigned on or after 1 January 2007, and ten digits long if assigned before 2007. An International Standard Book Number consists of four parts (if it is a 10-digit ISBN) or five parts (for a 13-digit ISBN). Section 5 of the International ISBN Agency's official user manual describes the structure of

2288-501: The sons of Magnes and a Naiad , or of Peristhenes and Androthoe , or else of Poseidon and Cerebia . He discovered Danaë and Perseus inside a chest that had been washed up on shore (or was caught in his fishing net). He treated them well and raised Perseus as his own son. After Perseus killed Medusa , rescued Andromeda , and later showed Medusa's head to Polydectes turning him and the nobles with him to stone, he made Dictys king. Dictys and his wife, Clymene , had an altar within

2340-415: The sum of all the thirteen digits, each multiplied by its (integer) weight, alternating between 1 and 3, is a multiple of 10 . As ISBN-13 is a subset of EAN-13 , the algorithm for calculating the check digit is exactly the same for both. Formally, using modular arithmetic , this is rendered: The calculation of an ISBN-13 check digit begins with the first twelve digits of the 13-digit ISBN (thus excluding

2392-430: The sum of these nine products found. The value of the check digit is simply the one number between 0 and 10 which, when added to this sum, means the total is a multiple of 11. For example, the check digit for an ISBN-10 of 0-306-40615- ? is calculated as follows: Adding 2 to 130 gives a multiple of 11 (because 132 = 12×11)—this is the only number between 0 and 10 which does so. Therefore, the check digit has to be 2, and

2444-471: The writers of the Byzantine period, such as Joannes Malelas , Constantinus Porphyrogenitus , Georgius Cedrenus , Constantinus Manasses , Joannes and Isaacus Tzetzes , with others, quote largely from this Dictys as an author of the highest and most unquestionable authority, and he certainly was known as early as the age of Aelian ." Petrarch 's own copy of Ephemeris belli Troiani , his key to Homer,

2496-545: Was by far the biggest user of the ISBN identifier in 2020, followed by the Republic of Korea (329,582), Germany (284,000), China (263,066), the UK (188,553) and Indonesia (144,793). Lifetime ISBNs registered in the United States are over 39 million as of 2020. A separate ISBN is assigned to each edition and variation (except reprintings) of a publication. For example, an ebook, audiobook , paperback, and hardcover edition of

2548-604: Was devised in 1967, based upon the 9-digit Standard Book Numbering ( SBN ) created in 1966. The 10-digit ISBN format was developed by the International Organization for Standardization (ISO) and was published in 1970 as international standard ISO 2108 (any 9-digit SBN can be converted to a 10-digit ISBN by prefixing it with a zero). Privately published books sometimes appear without an ISBN. The International ISBN Agency sometimes assigns ISBNs to such books on its own initiative. A separate identifier code of

2600-532: Was required to be compatible with the EAN format, and hence could not contain the letter 'X'. According to the 2001 edition of the International ISBN Agency's official user manual, the ISBN-10 check digit (which is the last digit of the 10-digit ISBN) must range from 0 to 10 (the symbol 'X' is used for 10), and must be such that the sum of the ten digits, each multiplied by its (integer) weight, descending from 10 to 1,

2652-414: Was said to have been enclosed in a leaden box and buried with its author, according to his wishes. The Greek "name" Eupraxis simply means "right actions", a familiar goal in discussions of ethics , and an amusingly apt name for the finder. The prologue that characterizes one manuscript tradition is substituted in the other main group of manuscripts with a letter as if written by a Q. Septimius Romanus, to

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2704-1001: Was the brother of Actor and Belus . Dictys is also the title of a lost play by Euripides , which survives in fragmentary form. Notes [ edit ] ^ Hyginus , Fabulae 63 ^ Apollodorus , 1.9.6 ^ Gantz, Timothy (1993). Early Greek Myth: A Guide to Literary and Ancient Sources . London: Johns Hopkins University Press . p. 167. ISBN   0-8018-4410-X . ^ Scholia on Apollonius Rhodius , 4.1091 ^ Tzetzes on Lycophron , 838 ^ Apollodorus, 2.4.1–3 ^ Pausanias , 2.18.1 ^ Hyginus, Fabulae 134 ^ Ovid , Metamorphoses 12.327 ^ Hyginus, Fabulae 157 References [ edit ] Apollodorus , The Library with an English Translation by Sir James George Frazer, F.B.A., F.R.S. in 2 Volumes, Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1921. ISBN   0-674-99135-4 . Online version at

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