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A comment on Free and Open-Source Mathematics Textbooks. Parent comment

Re:Free and Open-Source Mathematics Textbooks by psv1 on Saturday December 21, 2019 @10:02AM (#21851455)
> it is still often true that you get what you pay for

Hasn't been my experience at all - in fact I haven't noticed a relationship between quality and price of textbooks in either direction.

> you spend so much time and effort seriously working through a math book that whatever money you paid for it looks like something that does not matter at all.

You'll spend the time if the book is good. That's an advantage of free books - you can discard the bad ones without wasting money.

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Re:Free and Open-Source Mathematics Textbooks by oefrha on Saturday December 21, 2019 @10:20AM (#21851550)
> Hasn't been my experience at all - in fact I haven't noticed a relationship between quality and price of textbooks in either direction.

Maybe gp was referring to cheaper “international editions” available for certain popular texts. I heard they intentionally add errors to the cheaper editions (or at least shuffle exercises to make students’ lives miserable if their instructors assign textbook problems).

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