Are books on college and university Maths and the natural sciences available in braille anywhere in the world?

Are college and university-level books on Maths, Physics, Computer Science, Chemistry, and Biology available in braille anywhere in the world? Are these affordable enough? Is there any international library featuring such a collection?Are books on college and university Maths and the natural sciences available in braille anywhere in the world?
If you attend school in the United States, your college or university will be required to ensure that you have textbooks in an accessible format. (The specific laws you'll be depending on are Section 504 of the Rehabilitation Act and the Americans with Disabilities Act.) You will not be required to pay more for your books than other students are, but you may not be able to keep them at the end of the semester. (I tend to think you ought to be, but sometimes schools borrow the texts to provide to students and have to return them at the end of the semester.) The schools have to pay to get the accessible formats -- this can be as easy as having a publisher mail an electronic copy of the book or scanning a book without images, diagrams, columns, etc., and running it through OCR software, or as difficult and expensive as having a book with a lot of visual elements Brailled.



In many subjects, digital versions of texts are as accessible as Braille versions, but math, for instance, is one area where I don't know anyone with experience who claims that there is any alternative to Nemeth Braille that comes close to providing the same level of access.



To qualify for accessible texts, you'd have to provide a copy of an evaluation, in English, explaining your need for the Brailled versions. That means that for people coming from many areas, the evaluation would end up being paid for here, and since most of us do not qualify for government-funded health care that's a burden you might not have to assume if you want to study in some other countries. On the other hand, blindness is a lot easier (and cheaper) to establish than a number of other conditions that affect one's ability to access print. So if you want to study in one of the above fields and you are already in the US or you can get to the US to study, there are at least options.