Editing Ivo Lah

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{{Infobox scientist
| name              = Ivo Lah
| native_name       = 
| native_name_lang  = 
| image             = Ivo Lah.jpeg
| image_size        = 
| alt               = 
| caption           = 
| birth_date        = {{Birth date|1896|09|05|df=yes}} 
| birth_place       = [[Štrukljeva Vas]], near [[Cerknica]], [[Austria-Hungary]] 
| death_date        = {{Death date and age|1979|03|23|1896|09|05|df=yes}} 
| death_place       = [[Ljubljana]], [[Socialist Federal Republic of Yugoslavia|Yugoslavia]]
| fields            = Mathematics, statistics
| alma_mater        = [[University of Zagreb]]
| known_for         = [[Lah numbers]]
| awards            = 
}}

'''Ivo Lah''' ({{IPA|sl|ˈiːʋɔ ˈlax|pron}}; 5 September 1896 – 23 March  1979) was a [[Slovenia]]n [[mathematician]] and [[actuary]], best known for his discovery of the [[Lah number]]s in 1955 and for the [[Lah identity]]. In the 1930s, Lah made the first tables about [[mortality rate]]s in Slovenia.

==Biography==
Ivo Lah was born in [[Štrukljeva Vas]] near [[Cerknica]], [[Austria-Hungary]] (present-day Slovenia) on 5 September 1896.<ref name=tomas>{{cite web|last=Pisanski |first=Tomaž|author-link=Tomaž Pisanski|year=2002 | url=https://mathshistory.st-andrews.ac.uk/Biographies/Lah/|title= Ivo Lah | website=MacTutor History of Mathematics |access-date=2025-03-27}}</ref>

In the 1930s, Lah made the first tables about [[mortality rate]]s in Slovenia.<ref>{{cite news |url=https://demokracija.si/fokus/dr-janez-malacic-pri-nas-je-rodnost-priblizno-za-tretjino-prenizka-glede-na-tisto-ki-bi-bila-potrebna-da-bi-se-prebivalstvo-normalno-obnavljalo/ |title=Dr. Janez Malačič: Pri nas je rodnost približno za tretjino prenizka glede na tisto, ki bi bila potrebna, da bi se prebivalstvo normalno obnavljalo! |date=4 March 2019 |last=Berlec |first=Metod |access-date=September 9, 2019 |lang=sl}}</ref> Lah published ''Racunske osnovice zivotnog osiguranja'' in 1947.<ref name=tomas/>

Lah died in [[Ljubljana]], [[Socialist Federal Republic of Yugoslavia|Yugoslavia]] (present-day Slovenia).<ref name=tomas/>

==References==
{{Reflist}}

==Further reading==
* Mulec, Janez (2023), ''Življenjska pot matematika Iva Laha'' (Life course of mathematician Ivo Lah, in Slovene).  Self-published; reviewed in Zgodovinski časopis 78 (2024), Obzornik za Matematiko in Fiziko 70 (2023).

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{{DEFAULTSORT:Lah, Ivo}}
[[Category:1896 births]]
[[Category:1979 deaths]]
[[Category:Actuaries]]
[[Category:20th-century Slovenian mathematicians]]
[[Category:Yugoslav mathematicians]]
[[Category:Faculty of Science, University of Zagreb alumni]]
[[Category:University of Vienna alumni]]
[[Category:Slovenian military personnel]]
[[Category:Austro-Hungarian Army officers]]
[[Category:Austro-Hungarian military personnel of World War I]]
[[Category:Academic staff of the University of Zagreb]]
[[Category:Academic staff of the Sapienza University of Rome]]
[[Category:People from the Municipality of Cerknica]]