File:Robert_Recorde_@_St_Mary,_Tenby_(geograph_6264760).jpg · Wikimedia Commons · See Wikimedia Commons
Robert Recorde
Sign in to saveWelsh mathematician and inventor of the symbol '='
Person · Open Library
- Born
- 1510?
- Died
- 1558
- Works
- 16
Top works
- The urinall of phisicke
- The groud̃ of artes teachyng the worke and practise of arithmetike
- [The ground of arts
- The grovnd of artes
- The ground of arts, teachyng the perfect worke and practice of arithmetike
via Open Library + Wikidata
Music · MusicBrainz
- Type
- Person
- Gender
- Male
- Origin
- Germany
- Active from
- 1810-06-08
- Active to
- 1856-07-29
classicalcomposergermanromanticromantic classicalto clean up
Discography
- Der Rose Pilgerfahrt
- Dichterliebe, op. 481950
- Sinfonie nr. 4 d‐moll, op. 1201953
- Carnaval and Etudes Symphoniques1954
- Symphony no. 4 in D minor1954
- Concert pentru pian și orchestră în La minor, op. 541958
- Marsch nr.2 G‐moll / Waldszenen / Sechs Stücke aus Fantasiestücke, op. 121958
- Carnaval / Fantasy Pieces1959
- Piano Concertos1959
- Piano Quartets1959
via MusicBrainz · CC0
Recent publications · Crossref
5 total works indexed
- Development of the Colle-Salvetti correlation-energy formula into a functional of the electron density
· 1988 · cited 94,957x
- Hallmarks of Cancer: The Next Generation
· 2011 · cited 55,888x
- Research electronic data capture (REDCap)—A metadata-driven methodology and workflow process for providing translational research informatics support
· 2009 · cited 45,549x
- Regression Shrinkage and Selection Via the Lasso
· 1996 · cited 38,939x
- The PHQ-9
· 2001 · cited 38,336x
via Crossref · CC0
Key facts
- Born
- c. 1510 , Tenby , Pembrokeshire , Wales
- Died
- June 1558 ( 1558-07 ) (age 47 or 48), London, England
- Alma mater
- University of Oxford , University of Cambridge
- Known for
- Inventing the equals sign (=)
- Fields
- Physician and mathematician
- Institutions
- University of Oxford , Royal Mint
via Wikipedia infobox
Wikidata facts
- Image
- Robert Recorde (uncropped).jpg
Show 4 more facts
- date of birth
- 1510-00-00
- date of death
- 1558-01-01
- Commons category
- Robert Recorde
- P12749
- Kishibe Station
Sources (3)
via Wikidata · CC0
~5 min read
Article
Robert Recorde (c. 1510 – 1558) was a Welsh physician and mathematician. He invented the equals sign (=) and also introduced the pre-existing plus (+) and minus (−) signs to English speakers in 1557.
Biography
Gallery (2)
Connections
plus and minus signs
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English language
Concept
Wales
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algebra
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International Standard Book Number
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equation
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University of Oxford
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Ptolemy
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University of Cambridge
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Wayback Machine
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public domain
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digital object identifier
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International Standard Serial Number
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Mary I
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Edward VI of England
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Internet Archive
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Project Gutenberg
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Library of Congress Control Number
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OCLC, Inc.
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Q180686
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Categories
1510s births1558 deaths16th-century mathematicians16th-century philosophers16th-century Welsh male writers16th-century Welsh medical doctors16th-century Welsh scientists16th-century Welsh writersAlumni of the University of CambridgeAlumni of the University of OxfordBritish textbook writersFellows of All Souls College, OxfordPeople from TenbyPeople imprisoned for debtWelsh mathematiciansWelsh philosophers