| Title: | Proportional formulæ, bi-complex and tri-complex |
| Alternate title: | Proportional formulae, bi-complex and tri-complex, or A system, algebraically derived from the nature of proportionals, for the facilitation of that process in arithmetic commonly called the rule of three |
| Alternate title: | System algebraically derived from the nature of proportionals |
| Author: | Lee, John |
| Note: | Metcalf, Torry and Ballou, 1837 |
| Link: | page images at HathiTrust |
| No stable link: | This is an uncurated book entry from our extended bookshelves, readable online now but without a stable link here. You should not bookmark this page, but you can request that we add this book to our curated collection, which has stable links. |
| Subject: | Nautical astronomy |
| Subject: | Ratio and proportion |
| Other copies: | Look for editions of this book at your library, or elsewhere. |
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