Charts that compute

Catalogued

Log-log (double logarithmic) paper

Made by
Léon Lalanne (anamorphosis); commercial rulings from c.1900
Year
1846-1900
Field
Nomograms and computing charts
Kind
Graph paper
Room
Charts that compute — Placed by reading its description, not yet studiedCould also hang in: Change over time
Skeleton drawing, not the original plate

13 other forms share this skeleton

Source

Lipka 1918, Graphical and Mechanical Computation

Attribution less certain: contested, or no single inventor recorded

Searches, not citations

archive.orgcommons.wikimedia.orgscholar.google.com