Jens Hoyrup Books

Mathematics and War

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Mathematics has for centuries been stimulated, financed and credited by military purposes. Some mathematical thoughts and mathematical technology have also been vital in war. During World War II ma...

Michelanea

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Institutions, professions, and ideas

By Jens Hoyrup

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L algebre au temps de Babylone

By Jens Hoyrup

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L'algebre au temps de Babylone

By Jens Hoyrup

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Selected Essays on Pre and Early Modern Mathematical Practice

By Jens Hoyrup

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World of the Abbaco

By Jens Hoyrup

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Mathematics and War

By Jens Hoyrup, Bernhelm Booss Bavnbek

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Mathematics and War

By Bernhelm Booss Bavnbek, Jens Hoyrup

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Explorations and False Trails

By Jens Hoyrup

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.