International Workshop BN
Eamonn's mystery table.
“System Cuntz”
Click image for magnification
See also Dieter von Jezierski, “System Cuntz, …”
Slide Rule Gazette 4, Autumn 2003, p.85;
Georg Schreiber, “Koch, Huxhold & Hannemann”, 2011
and US Patent 1168059
Data:
- Handwritten table on the back of a System Cuntz Version A slide rule.
- The characters at the top of the table are unusual. They may be some type of shorthand.
Questions:
- What was the purpose of the table and what do the values represent?
Suggestion 1: Row 5 and 6 are reciprocals of row 3 and 4, except for the last column (this is also approximately true for suggestion 2)Suggestion 2: Simple relations between the first data row (x) and the other rows (y), except for the last column:
Show: | |G1 = D1³: y ≈ 1.9 / x G2 = D2³: y ≈ 2.3 / x D3 = G1: y ≈ 0.52 × x D4 = G2: y ≈ 0.44 × x
Andries de Man2.1 7.3 7.9 8.9 8.3 8.6 11 0.9 G1 = D1³: 0.93 0.27 0.24 0.21 0.23 0.22 0.17 1.0 G2 = D2³: 1.1 0.31 0.29 0.26 0.28 0.27 0.21 – D3 = G1: 1.1 3.7 4.1 4.7 4.3 4.5 5.9 1.0 D4 = G2: 0.9 3.2 3.5 3.9 3.6 3.8 5.0 –