File:Promptuary diagram 6.png
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Summary
| Description |
English: Napier's Promptuary: an example calculation: 772 times 396. The result is read by adding up the displayed digits in the diagonal stripes |
| Date | |
| Source | Own work |
| Author | Gnomon42 |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:34, 2 April 2020 | | 1,250 × 1,360 (33 KB) | Gnomon42 | Uploaded own work with UploadWizard |
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