a Flemish Image of Mathematics in the Sixteenth Century
An illustration of the use of Coignet's sector.
Coignet's sector is described in the manuscript illustrated in figure 7 and figure 8 and is used to perform calculations relating to volumes of wine in barrels.
Michel Connette [Coignet], La géometrie (Paris, 1626).
See also figure 27
List of figures
(c) Museum of the History of Science, Broad Street, Oxford, England.