Tomasa Calvo Books

A Practical Guide to Averaging Functions

By Tomasa Calvo, Gleb Beliakov, Humberto Bustince Sola

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Aggregation Functions in Theory and in Practise

By Tomasa Calvo, Javier Fernandez, Radko Mesiar, Humberto Bustince Sola

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Aggregation Operators

By Tomasa Calvo

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This book describes the current status of major parts of the theory of aggregation operators and examines potential areas for its applications. The authors have gathered self-contained papers and p...

Aggregation Operators

By Tomasa Calvo

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Practical Guide to Averaging Functions

By Tomasa Calvo, Gleb Beliakov, Humberto Bustince Sola

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A Practical Guide to Averaging Functions

By Tomasa Calvo, Gleb Beliakov, Humberto Bustince Sola

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Aggregation Functions

By Ana Pradera, Tomasa Calvo, Gleb Beliakov

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Aggregation Functions

By Ana Pradera, Tomasa Calvo, Gleb Beliakov

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Aggregation Operators

By Gaspar Mayor, Tomasa Calvo, Radko Mesiar

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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.