Studied from its original page
Nomogrammes à cercles concourants
nomograms of concurrent circles · nomogrammes à cercles cotés (labelled circles) · concurrent lines and circles for quadratic equations (§47)
- Made by
- Maurice d'Ocagne (general theory, paper of 1896); an earlier labelled-circle chart by Captain Ricour (1873)
- Year
- 1896
- Field
- Nomograms and computing charts
- Kind
- Computing chart
- Room
- Charts that compute
See the original page — fig. 47, printed p. 113 (archive leaf n136)
Published 1921 (A) and the figure is a treatise illustration by d'Ocagne, who died in 1938 (B ended 2008).
The data it needs
z1input (one family) · quantitativez2input (one family) · quantitativez3output (the family read at the concurrence) · quantitative
Built in 5 steps, as its maker described
ch. II §46, pp. 109–113, fig. 47 p. 113; §47, pp. 113–115
121 other forms share this skeleton
Source
d'Ocagne 1921, Traité de nomographie, 2e éd.
Attribution checked against the source