Michael Metcalf Books

The F Programming Language

By Michael Metcalf

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Fortran 90 95 Explained

By Michael Metcalf

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Fortran 90 95 Explained

By Michael Metcalf, John K. Reid

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Fortran 95 is a revision of the Fortran 90 standard based on the interpretations that have been requested following its implementation and use. In addition new features to keep ISO Fortran aligned...

Fortran remains one of the principal languages used in scientific, numerical and engineering programming and a series of revisions to the standard versions of the language have progressively enhanc...

Effective Fortran 77

By Michael Metcalf

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Fortran 8X Explained

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Fortran 90 Explained

By Michael Metcalf

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Fortran 8X Explained

By Michael Metcalf

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Modern Fortran Explained

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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.