This library is built in the open.
If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.
Diophantus of Alexandria; Paul Tannery (ed.) · 1893

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This is a digital copy of a physical book. It was kept on library shelves for many years before being scanned by Google. This work is part of a project to make books from all over the world easy to find online.
The book has existed long enough for its copyright to expire. It is now in the public domain. A public domain book is one that was never protected by copyright or whose legal protections have ended. The status of a book can change from one country to another. Public domain books are important links to the past. They provide a wealth of history and culture that is often difficult to find.
You may see stamps, handwritten notes, or other marks in the margins of this file. These are traces of the book's long history. They show its journey from the original printer to the library and finally to you.
Google partners with libraries to scan public domain books and make them easy to access. These books belong to the public. We are simply their caretakers. This project is expensive. To keep this resource available, we have set rules to prevent commercial abuse. This includes limits on automated searching.
We also ask the following:
Google's goal is to organize the world's information. We want to make it useful and available to everyone. Google Book Search helps readers find books. It also helps authors and publishers reach new people. You can search the full text of this book on the web at http://books.google.com/