Historical images and photographs

All come from Wikimedia Commons. We use the files or thumbnails provided by Commons, reduced to at most 800 pixels wide, with no other editing.

  • Portrait of Augustin-Louis Cauchy, lithograph by Rudolf Hoffmann (1856) after a photograph by Bertsch: source page · public domain.
  • Oil portrait of Cauchy, around 1840, attributed to Jean Roller, Château de Sceaux: source page · public domain.
  • Lithograph of Cauchy by Louis Grégoire and Deneux, around 1840, Dibner collection of the Smithsonian Libraries: source page · public domain.
  • Bronze medallion by Pierre-Jean David d’Angers (1843): source page · CC0.
  • Title page of the Cours d’analyse (1821), cleaned version (converted from GIF to JPEG): source page · CC0.
  • Cauchy’s name on the Eiffel Tower, photo by Juanedc: source page · CC BY 2.0.
  • Cauchy’s grave in the cemetery of Sceaux, photo by Antoine Rex: source page · CC0.

Figures made for the blog

The cover and the four interactive figures (bisection, the band of width ε in Cauchy’s criterion, the integral of 1/(1 + z²) around a circle and the stress vector on a rotating cut) are original illustrations, with text in each of the site’s languages.

Record

The file data/cauchy_imagens.json records the origin, licence, verification date and SHA-256 hash of each downloaded image. The historical sources for each topic are listed at the end of each post.

All topics on Augustin-Louis Cauchy · ← The legacy of Augustin-Louis Cauchy