Notation of cards for algebraic addition if more than 40 figures.
- Babbage, Charles
This notation includes a draft in pencil described as 'To be copied. Copied. Notation of cards for algebraic addition if more than 40 figures', dated 12 July 1839, numbered as 117 by Babbage and F.117/[a] by Bromley. Dimensions of draft sheet folded out 34 cm x 48 cm.
- Large Format Document