About: Unum (number format)

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Unums (universal numbers) are a family of formats and arithmetic, similar to floating point, proposed by John L. Gustafson in 2015. They are designed as an alternative to the ubiquitous IEEE 754 floating-point standard. The latest version (known as posits) can be used as a drop-in replacement for programs that do not depend on specific features of IEEE 754.

Attributes	Values
rdfs:label	Unum (Zahlenformat) (de) Unum (number format) (en)
rdfs:comment	Unums (universal numbers) are a family of formats and arithmetic, similar to floating point, proposed by John L. Gustafson in 2015. They are designed as an alternative to the ubiquitous IEEE 754 floating-point standard. The latest version (known as posits) can be used as a drop-in replacement for programs that do not depend on specific features of IEEE 754. (en) Universal numbers, kurz Unum, sind ein Gleitkommazahlen-Format, das von John L. Gustafson, bekannt durch Gustafsons Gesetz, als Alternative zu den vorherrschenden IEEE-754-Gleitkommazahlen entwickelt wurde. Die erste Version von Unums wird retrospektiv als Typ I bezeichnet, als danach Typ II und später Typ III veröffentlicht wurden. “Some people are surprised that π can be represented as an exact number, but of course it can, which is one reason for the term ‘universal number.’” – John L. Gustafson: A Radical Approach to Computation with Real Numbers (de)
dcterms:subject	Floating point types Articles with example C code
Wikipage page ID	44823108 (xsd:integer)
Wikipage revision ID	1112938368 (xsd:integer)
Link from a Wikipage to another Wikipage	Prentice Hall Elias gamma coding Julia (programming language) London South Bank University MATLAB SUSE Linux Tapered floating point C++ GNU Slovak University of Technology in Bratislava Floating point types Floating-point arithmetic Floating-point error mitigation Significant figures John L. Gustafson Q (number format) Interval (mathematics) Interval arithmetic Arith23 Articles with example C code Karlsruhe Accurate Arithmetic Karlsruhe Institute of Technology LLVM Lawrence Livermore National Laboratory Dot product City University of Applied Sciences IEEE 754 IEEE 754-1985 Willard L. Miranker Significand Ulrich W. Kulisch Universität zu Köln William M. Kahan Exponent
Link from a Wikipage to an external page	https://posithub.org http://arith22.gforge.inria.fr/slides/06-gustafson.pdf http://frign.de/publications/2016-11-08-the_unum_number_format.pdf http://www.kirp.chtf.stuba.sk/assets/publication_info.php%3Fid_pub=1865 http://www.learningj.com/unumslab.zip http://www.weblearn.hs-bremen.de/risse/papers/LSBU/LSBU_Unum.pdf https://calligotech.com/posit-numeric-unit-pnu-ip/ https://posithub.org/khub_community https://vivid-sparks.com/ https://pypi.org/project/sfpy/ https://people.eecs.berkeley.edu/~wkahan/SORNers.pdf http://insidehpc.com/2015/03/slidecast-john-gustafson-explains-energy-efficient-unum-computing/ http://www.johngustafson.net/presentations/Right-SizingPrecision1.pdf http://www.johngustafson.net/presentations/UnumArithmetic-ICRARseminar.pdf http://www.johngustafson.net/presentations/UnumArithmetic-ICRARseminar.pptx http://www.johngustafson.net/presentations/Unums2.0.pdf http://www.johngustafson.net/presentations/Unums2.0.pptx http://www.johngustafson.net/pubs/RadicalApproach.pdf https://www.johndcook.com/blog/2018/04/11/anatomy-of-a-posit-number/ https://posithub.org/khub_doc%23posits4 https://github.com/ChenJianyunp/Posit32-2-exact-multiply-accumulator https://github.com/DavidThien/softposit-rkt https://github.com/Etaphase/FastSigmoids.jl https://github.com/Lombiq/Arithmetics https://github.com/REX-Computing/unumjl https://github.com/RaulMurillo/deep-pensieve https://github.com/artecs-group/PERCIVAL https://github.com/cerlane/posit-javascript https://github.com/diegofgcoelho/positsoctave https://github.com/eruffaldi/cppposit https://github.com/facebookresearch/deepfloat https://github.com/interplanetary-robot/SigmoidNumbers https://github.com/interplanetary-robot/Verilog.jl https://github.com/libcg/bfp https://github.com/manish-kj/PACoGen https://github.com/mightymercado/PySigmoid https://github.com/milankl/SoftPosit.jl%23readme https://github.com/stillwater-sc/universal https://github.com/xman/sgpositpy https://groups.google.com/d/msg/unum-computing/6A2V7CdHp8A/bLc8KuXABQAJ https://web.archive.org/web/20160606203112/http:/www.johngustafson.net/presentations/Right-SizingPrecision1.pdf https://web.archive.org/web/20160606203155/http:/arith22.gforge.inria.fr/slides/06-gustafson.pdf https://web.archive.org/web/20160710194003/http:/www.johngustafson.net/presentations/Unums2.0.pptx https://web.archive.org/web/20160710201955/http:/www.johngustafson.net/presentations/UnumArithmetic-ICRARseminar.pptx https://web.archive.org/web/20160710202036/http:/www.johngustafson.net/presentations/UnumArithmetic-ICRARseminar.pdf https://web.archive.org/web/20160710210430/http:/www.johngustafson.net/presentations/Unums2.0.pdf https://web.archive.org/web/20160710220847/http:/insidehpc.com/2015/03/slidecast-john-gustafson-explains-energy-efficient-unum-computing/ https://web.archive.org/web/20160710221518/http:/www.johngustafson.net/pubs/RadicalApproach.pdf https://web.archive.org/web/20160712121728/http:/www.math.kit.edu/iwrmm/seite/preprints/media/preprint%20nr.%2015-02.pdf https://web.archive.org/web/20160712122236/http:/www.weblearn.hs-bremen.de/risse/papers/LSBU/LSBU_Unum.pdf https://web.archive.org/web/20160801162751/https:/people.eecs.berkeley.edu/~wkahan/SORNers.pdf https://web.archive.org/web/20170107142232/http:/frign.de/publications/2016-11-08-the_unum_number_format.pdf https://web.archive.org/web/20171104235925/https:/posithub.org/ https://gitlab.com/amfiremage/gosit/-/tree/master https://gitlab.com/cerlane/SoftPosit http://www.math.kit.edu/iwrmm/seite/preprints/media/preprint%20nr.%2015-02.pdf
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