Sotirios E. Louridas Books

Problem solving and selected topics in Euclidean geometry

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Problem-Solving and Selected Topics in Euclidean Geometry: In the Spirit of the Mathematical Olympiads contains theorems of particular value for the solution of Olympiad-caliber problems in Euclide...

Problem Solving and Selected Topics in Euclidean Geometry

By Michael Th Rassias, Sotirios E. Louridas

Average: 0.00, 0 Ratings

Problem Solving and Selected Topics in Euclidean Geometry

By Michael Th Rassias, Sotirios E. Louridas

Average: 0.00, 0 Ratings

Problem-solving and selected topics in Euclidean geometry

By Sotirios E. Louridas

Average: 0.00, 0 Ratings

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.