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Template:OEIS/doc
From OeisWiki
The {{OEIS}} interwiki link template gives an interwiki link to the http://oeis.org/search?q=first_parameter_string search results page. (To avoid an issue with A-numbers, the first character is converted to lower case.) Note that the OEIS search engine does Porter stemming,[1][2] i.e. reduces inflected (or sometimes derived) words to their stem, base or root form.
Usage:
- {{OEIS|search string}}
or
- {{OEIS|search string|format = format}}
or
- {{OEIS|search string|link label}}
or
- {{OEIS|search string|link label|format = format}}
Parameters:
- first parameter: search string (automatically URL encoded), where if search string contains A-numbers:
- to search for any sequence containing A-number A123456, use
A123456
, - to search for the sequence with A-number A123456, use
id:A123456
, but only withformat = text
orformat = json
, otherwise useA123456
which gives the automatic link A123456;
- to search for any sequence containing A-number A123456, use
- (optional) second parameter: link label string (first parameter used as default);
- (optional) last [named] parameter:
format
:text
(plain text) orjson
(JSON: JavaScript Object Notation)
Some hints for search string: (See OEIS search hints and advanced search syntax.)
- The search text is a list of space-separated search terms, as with popular web search engines.
- The search terms can be single numbers, sequences of numbers, single words or sequences of words.
- Sequences of numbers should be separated with commas (or spaces if the order doesn't matter).
- Word sequences should be enclosed in double quotes.
- You can separate search terms with
|
(no spaces around the|
) and it means sequences that match either term.
(WARNING: You need to use the {{!}} workaround template to produce the|
pipe character in a template parameter!)
Examples:
- {{OEIS|identity}} yields identity (searches for words with the stem ident)
- {{OEIS|identical}} yields identical (searches for words with the stem ident)
- {{OEIS|"identity"}} yields "identity" (unfortunately, still searches for words with the stem ident)
- {{OEIS|"identity operator"}} yields "identity operator" (searches for two consecutive words with the stems ident and oper)
- {{OEIS|Fibonacci}} yields Fibonacci
- {{OEIS|Fibonacci|search for "Fibonacci" in OEIS}} yields search for "Fibonacci" in OEIS
- {{OEIS|Fibonacci{{!}}Lucas}} yields Fibonacci|Lucas
- {{OEIS|1,4,9,16,25,36,49,64,81,100}} yields 1,4,9,16,25,36,49,64,81,100
- {{OEIS|"symmetric group"|search for "symmetric group"}} yields search for "symmetric group"
- {{OEIS|2,3,6,16 "symmetric group" author:Stanley}} yields 2,3,6,16 "symmetric group" author:Stanley
- {{OEIS|"twin primes" keyword:nice keyword:hard}} yields "twin primes" keyword:nice keyword:hard
- {{OEIS|id:A000045}} to get id:A000045 (just use
A000045
to get the automatic link A000045 instead) (only the sequence with A-number A000045)
- {{OEIS|A001011|Search A001011 (TEXT)}} yields Search A001011 (TEXT)
- Use A001011 (automatically linked) which is better than {{OEIS|id:A001011|A001011}} yielding A001011 (only the sequence with A-number A001011)
Examples: TEXT
- {{OEIS|Fibonacci|format = text}} yields Fibonacci
- {{OEIS|Fibonacci|Fibonacci (plain text)|format = text}} yields Fibonacci (plain text)
- {{OEIS|A001011|Search A001011 (TEXT)|format = text}} yields Search A001011 (TEXT)
- {{OEIS|id:A001011|Get A001011 (TEXT)|format = text}} yields Get A001011 (TEXT) (only the sequence with A-number A001011)
- {{OEIS|id:A001011{{!}}id:A001015|Get A001011 and A001015 (TEXT)|format = text}} yields Get A001011 and A001015 (TEXT) (only the sequences with A-numbers A001011 and A001015) (note the use of the {{!}} [pipe] template)
Examples: JSON
- {{OEIS|Fibonacci|format = json}} yields Fibonacci
- {{OEIS|Fibonacci|Fibonacci (JSON)|format = json}} yields Fibonacci (JSON)
- {{OEIS|A001011|Search A001011 (JSON)|format = json}} yields Search A001011 (JSON)
- {{OEIS|id:A001011|Get A001011 (JSON)|format = json}} yields Get A001011 (JSON) (only the sequence with A-number A001011)
- {{OEIS|id:A001011{{!}}id:A001015|Get A001011 and A001015 (JSON)|format = json}} yields Get A001011 and A001015 (JSON) (only the sequences with A-numbers A001011 and A001015) (note the use of the {{!}} [pipe] template)
See also:
- {{oeisf}} for an external link to a file or directory on oeisf.org.
- JSON Format, Compressed Files
Notes
- ↑ The Porter stemming algorithm. [http://snowball.tartarus.org/algorithms/porter/stemmer.html]
- ↑ The English (Porter2) stemming algorithm. [http://snowball.tartarus.org/algorithms/english/stemmer.html]