Category:Slide rules system Mannheim

Deutsch: Rechenschieber, System Mannheim

English: Slide rules, system Mannheim
In 1850, the French mathematician and engineer Amédée Mannheim created a slide rule with a cursor and a useful combination of scales: X (C, D) and X-square (A, B) pairs; also, sine (S) and tangent (T) scales on the back side of the slider – but the slider had to be turned to use these scales on front.^[1]

↑ Christian Hamann (2017-05-28). The History of Slide Rule Inventors. On-line Pre-Computer Technical Museum. Beuth University of Applied Sciences Berlin. Retrieved on 2021-03-28.

Media in category "Slide rules system Mannheim"

The following 3 files are in this category, out of 3 total.

Vintage "Sun" Hemmi's Bamboo Slide Rule, 10-Inch, Made in Japan (9610474266).jpg 4,509 × 1,441; 2.04 MB
Vintage Keuffel & Esser Company Beginner's Slide Rule (Reverse Side), No. 4058C, All Wood Framed Cursor, Made In USA, Circa 1930s (31955561837).jpg 4,006 × 2,242; 2.75 MB
Vintage Keuffel & Esser Company Beginner's Slide Rule, No. 4058C, All Wood Framed Cursor, Made In USA, Circa 1930s (46171984654).jpg 3,772 × 2,130; 2.82 MB

[Hamann-1] Christian Hamann (2017-05-28). The History of Slide Rule Inventors. On-line Pre-Computer Technical Museum. Beuth University of Applied Sciences Berlin. Retrieved on 2021-03-28.

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