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(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)- 13:50, 10 September 2015 Sks23cu (talk | contribs) uploaded File:59.pdf (59�s Abacus Representations Over Time;? and Playfully Counting By 11�s.)
- 19:29, 31 August 2015 Sks23cu (talk | contribs) uploaded a new version of File:Sachs-pg228 commentsBySKS-2.pdf (fixed formatting errors; increased resolution)
- 18:54, 31 August 2015 Sks23cu (talk | contribs) uploaded File:AbacusAlternativeToTechnique.pdf (In Section 13 Sachs demonstrates the use of �The Technique� for finding the reciprocal of a regular sexagesimal number c = 5,3,24,26;40. This paper demonstrates finding 1/c using a three tablet abacus; a procedure that can be used even with non-reg...)
- 18:41, 31 August 2015 Sks23cu (talk | contribs) uploaded File:Sachs-pg228 commentsBySKS-2.pdf (Reproducing Sachs' p.228 table of Reciprocals of Regular Sexagesimal Numbers? on a three tablet line abacus.)
- 02:49, 21 August 2015 Sks23cu (talk | contribs) uploaded File:DoublingOnAbacusBase10.pdf (Using two tablets to handle large numbers from geometric sequence calculations. Demonstration of doubling to calculate 20 digit result. Thoughts on multipliers from 3 to 32.)
- 11:47, 28 May 2014 Sks23cu (talk | contribs) uploaded File:ElectronicChineseAbacus.pdf (Title: A new construction adder based on Chinese abacus algorithm. Authors: Yi, Shu-Chung1 jerry1@url.com.tw Source: Computers & Electrical Engineering. Mar2012, Vol. 38 Issue 2, p185-193. 9p. Abstract: A new construction adder based on Chinese abacus alg)
- 13:42, 3 September 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cu18 20.png
- 13:23, 3 September 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cu19c.png
- 13:20, 3 September 2013 Sks23cu (talk | contribs) uploaded File:Sks23cu19c.pdf
- 13:19, 3 September 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cu19b.png
- 13:18, 3 September 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cu19a.png
- 11:25, 2 September 2013 Sks23cu (talk | contribs) uploaded a new version of File:TheStephensonAbacus-ArchD.pdf
- 10:48, 2 September 2013 Sks23cu (talk | contribs) uploaded a new version of File:TheStephensonAbacus-ArchD.pdf
- 00:36, 28 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuSubSciNotNumbers5.png
- 00:34, 28 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuSubSciNotNumbers4.png
- 00:34, 28 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuSubSciNotNumbers3.png
- 00:33, 28 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuSubSciNotNumbers2.png
- 00:31, 28 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuSubSciNotNumbers1.png
- 10:38, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStepE.png (Delete this file.)
- 10:36, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStepD.png
- 10:36, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStepC.png
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- 10:34, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStepA.png
- 10:34, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep9.png
- 10:34, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep8.png
- 10:33, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep7.png
- 10:33, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep6.png
- 10:32, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep5.png
- 10:32, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep4.png
- 10:31, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep3.png
- 10:30, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep2.png
- 10:28, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep1.png
- 10:22, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStep1.png
- 09:34, 26 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cuBase3MultStepF.png (Delete this file.)
- 14:52, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep13.png
- 14:51, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep12.png
- 14:50, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep11.png
- 14:50, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep10.png
- 14:49, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep09.png
- 14:49, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep08.png
- 14:48, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep07.png
- 14:48, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep06.png
- 14:47, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep05.png
- 14:46, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep04.png
- 14:46, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep03.png
- 14:45, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep02.png
- 14:44, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtDivStep01.png
- 13:46, 25 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cuHilprechtP28table.jpg
- 07:08, 23 August 2013 Sks23cu (talk | contribs) uploaded a new version of File:Sks23cu18 20.png
- 15:07, 22 August 2013 Sks23cu (talk | contribs) uploaded File:Sks23cu18 20.png (18_20 on abacus.)