''Indagationes Mathematicae'' (

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for "Mathematical Investigations") is a Dutch mathematics

journal A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of personal secretive thoughts and as open book to personal therapy or used to feel connected to onesel ...

. The journal originates from the ''Proceedings of the

Royal Netherlands Academy of Arts and Sciences The Royal Netherlands Academy of Arts and Sciences (, KNAW) is an organization dedicated to the advancement of science and literature in the Netherlands. The academy is housed in the Trippenhuis in Amsterdam. In addition to various advisory a ...

'' (or ''Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen''), founded in 1895. From 1939, mathematics articles in this journal were published separately, under the alternative title ''Indagationes Mathematicae''. In 1951 the proceedings officially split into three journals, keeping the same name but distinguished from each other by being in separate series. They were Series A (Mathematical Sciences), Series B (Physical Sciences), and Series C (Biological and Medical Sciences). At that time, Series A became published by the

North-Holland Publishing Company Elsevier ( ) is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', '' Cell'', the ScienceDirect collection of electronic journals, '' Trends'', t ...

; the volumes from this time are now listed by the publisher as ''Indagationes Mathematicae (Proceedings)''.All papers in Indagationes Mathematicae are now digitized
Tom Koornwinder, June 3, 2015, accessed 2017-01-20... In 1971, North-Holland merged with

Elsevier Elsevier ( ) is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell (journal), Cell'', the ScienceDirect collection of electronic journals, ...

. Beginning in 1990 the journal dropped the "(Proceedings)" from its title, leaving the journal's name in its current form as ''Indagationes Mathematicae''. In 2010, sponsorship of the journal was transferred from the Royal Netherlands Academy to the Royal Dutch Mathematical Society, while it continued to be published by Elsevier. The typesetting from this journal, including its mathematical formulae, was chosen by

Donald Knuth Donald Ervin Knuth ( ; born January 10, 1938) is an American computer scientist and mathematician. He is a professor emeritus at Stanford University. He is the 1974 recipient of the ACM Turing Award, informally considered the Nobel Prize of comp ...

as one of three examples of typesetting quality when he designed the

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digital typesetting software from 1978.. Reprinted as chapter 32 of ''Digital Typography'', pp. 601–624. See especially p. 364 (p. 620): "And the third source was a copy of ''Indagationes Mathematicae'', the Dutch journal. There's a long fine tradition of quality printing in the Netherlands, and I selected an issue from 1950 or thereabouts, where again I thought that the mathematics was particularly well done." It is indexed in

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and

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with a year 2020 impact factor of 0.956.

References

{{reflist Mathematics journals English-language journals Academic journals established in 1951