Eugene F. Krause Books

Introduction to linear algebra

By Eugene F. Krause

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Mathematics for elementary teachers

By Eugene F. Krause

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Taxicab Geometry: An Adventure in Non-Euclidean Geometry

By Eugene F. Krause

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Develops a simple non-Euclidean geometry and explores some of its practical applications through graphs, research problems, and exercises. Includes selected answers.

Instructor s guide for Mathematics for elementary teachers

By Eugene F. Krause

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Mathematics for elementary teachers

By Eugene F. Krause

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Mathematics for elementary teachers

By Eugene F. Krause

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Instructor's Guide to Accompany Mathematics for Elementary Teachers

By Eugene F. Krause

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Taxicab Geometry

By Eugene F. Krause

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Mathematics for Elementary Teachers

By Eugene F. Krause

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Taxicab Geometry

By Eugene F. Krause

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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.