# Mathematician:Johann Friedrich Pfaff

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## Mathematician

German mathematician who was a precursor of the German school, being a direct influence on Carl Friedrich Gauss.

## Nationality

German

## History

- Born: 22 December 1765 in Stuttgart, Holy Roman Empire (now Germany)
- Died: 21 April 1825 in Halle, Saxony (now Germany)

## Theorems and Definitions

- Pfaff's Transformation
- Pfaff-Saalschütz Theorem (with Louis Saalschütz) (also known as Saalschütz's Hypergeometric Theorem)

Results named for **Johann Friedrich Pfaff** can be found here.

Definitions of concepts named for **Johann Friedrich Pfaff** can be found here.

## Publications

- 1797:
*Disquisitiones analyticae maxime ad calculum integralem et doctrinam serierum pertinentes* - 1797:
*Observationes analyticae ad L. Euleri Institutiones calculi integralis*(*Nova Acta Acad. Scient. Petr.***Vol. 11**: pp. 38 – 57)

## Also known as

**Johann Friedrich Pfaff'**s middle name can sometimes be seen spelt **Friederich**.