DescriptionSliderule2005.jpg English: An old slide rule, model Aristo 868 Studio, showing the calculation 1.3 x 2 = 2.6. Black background Date 23 December 2005
DescriptionSliderule Tk.jpg English: Screenshot made by poster, used in wikibooks/Programming:Tcl Date 24 November 2005 (original upload date) Source Transferred