Ignacy Zaborowski (2 November 1754–10 January 1803) was a Polish

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...

and

geodesist Geodesy ( ) is the Earth science of accurately measuring and understanding Earth's figure (geometric shape and size), orientation in space, and gravity. The field also incorporates studies of how these properties change over time and equival ...

;

Piarist The Piarists (), officially named the Order of Poor Clerics Regular of the Mother of God of the Pious Schools ( la, Ordo Clericorum Regularium pauperum Matris Dei Scholarum Piarum), abbreviated SchP, is a religious order of clerics regular of the ...

. He was a professor and

rector Rector (Latin for the member of a vessel's crew who steers) may refer to: Style or title *Rector (ecclesiastical), a cleric who functions as an administrative leader in some Christian denominations *Rector (academia), a senior official in an edu ...

of the Collegium Nobilium.

Biography

Born on 2 November 1754 in Ruthenian Voivodeship, Zaborowski attended

Piarists The Piarists (), officially named the Order of Poor Clerics Regular of the Mother of God of the Pious Schools ( la, Ordo Clericorum Regularium pauperum Matris Dei Scholarum Piarum), abbreviated SchP, is a religious order of clerics regular of the ...

school in Zolochiv. He joined the Piarists order and after that he taught mathematics in Piarists school in Waręż and

Łomża Łomża (), in English known as Lomza, is a city in north-eastern Poland, approximately 150 kilometers (90 miles) to the north-east of Warsaw and west of Białystok. It is situated alongside the Narew river as part of the Podlaskie Voivodeship ...

. After moving to

Warsaw Warsaw ( pl, Warszawa, ), officially the Capital City of Warsaw,, abbreviation: ''m.st. Warszawa'' is the capital and largest city of Poland. The metropolis stands on the River Vistula in east-central Poland, and its population is officia ...

, he became a teacher of mathematics and measuring, and then

(1799–1801) of Collegium Nobilium. In 1777 he went to

Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ...

for supplementary studies. In 1786 Zaborowski published the

textbook A textbook is a book containing a comprehensive compilation of content in a branch of study with the intention of explaining it. Textbooks are produced to meet the needs of educators, usually at educational institutions. Schoolbooks are textbook ...

''Jeometria praktyczna'' (

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles Poles,, ; singular masculine: ''Polak'', singular feminine: ''Polka'' or Polish people, are a West Slavic nation and ethnic group, w ...

for ''Practical geometry''), where he described methods of geodesic measurement. The book was awarded the Merentibus by Stanisław August Poniatowski. Zaborowski was an author of ''Logarytmy dlá szkół narodowych'' (Polish for ''

Logarithm In mathematics, the logarithm is the inverse function to exponentiation. That means the logarithm of a number to the base is the exponent to which must be raised, to produce . For example, since , the ''logarithm base'' 10 of ...

s for national schools'') written by order of

Commission of National Education The Commission of National Education ( pl, Komisja Edukacji Narodowej, KEN; lt, Edukacinė komisija) was the central educational authority in the Polish–Lithuanian Commonwealth, created by the Sejm and King Stanisław II August on October 1 ...

and published in 1787. He also wrote ''Tablice matematyczne'' (Polish for '' Mathematical tables'') which was published in 1797. He translated Fulgenty Obermajer's ''Arytmetyka praktyczna kieszonkowa''. He started working on the book ''Geometria wiejska'', an agriculture measurement textbook, but it has not been finished. In 1800 he became a member of the Society of Friends of Science. Since 1802 he was a provincial of

. Zaborowski died on 10 January 1803 in

Works

Books: * ''Jeometria praktyczna'' (1786) * ''Logarytmy dlá szkół narodowych'' (1787) * ''Tablice matematyczne'' (1797) * ''Geometria wiejska'' (never finished) Translations: * Obermajer, Fulgenty. ''Arytmetyka praktyczna kieszonkowa, Porywcze codzienne trafiające się rachunki, przy redukcyach monet, przy kupi i przedaży, z wielką łatwością odprawująca przez taryfę, o której na samym czele kładnie się informacya''.

External links

*
''Logarytmy dlá szkół narodowych''
book online ( DjVu format)

References

:General: * * :Inline: {{DEFAULTSORT:Zaborowski, Ignacy 1754 births 1803 deaths Polish geodesists 18th-century Polish–Lithuanian mathematicians Piarists Place of birth missing