As of recent, I have deeply read through Stephen Hawking’s “A Brief History of Time”, Thomas Levenson’s “The Hunt for Vulcan”, and Howard Eve’s “Foundations and Fundamental Concepts of Mathematics”. The thing is, I didn’t consider math history to be at all interesting until I have was enthralled in the tidbits of history presented throughout these books, and thus I reached out to a math history professor at my college for further reading material.
However, the books he had told me to get is on the extremely-costly for a college student who cannot afford to buy books on her own outside given scholarship money (Book one, two, and three)$^{[1]}$. However, I have had extremely good luck in the past from self-studying open-access materials like the Combinatorics and Abstract Algebra open-access textbooks.
Thus, I am wondering if there exists other Open-Access text books of Math History like the above - preferably recently published, as I have noticed/told that newer published books tend to have less bias, and generally more credibility, now than they did $10$ to $20$ years ago. I have tried my best for the last week to find such books online, but none seemed to fit that online format, nor did I feel comfortable enough that the books I did find would be comprehensive enough. Thus, any suggestions of all forms that are applicable to this is extremely welcomed and appreciated.
$[1]$ The simple answer of, “If you find it interesting, and are at a college, just signup for a math history class” isn’t suitable here. Being a MS Math student, all math history classes are not applicable for my degree or transcript, as they only exist for math-ed majors, and my scholarships will reject any classes that don’t apply to my MS degree, so I am not allowed to explore in any way in terms of other math subjects aside from the main-line, big-name subjects. In addition, sitting in classes isn’t allowed by the college registrar or the department, so that legitimately isn’t an option as well.
Edit:
Pirating textbooks, or finding the pdfs of certain books from Google with no context of where they come from is not an option. Please do not offer that as a suggestion in comments or as an answer, for obvious DMCA reasons and such.
This should be something I am able to have access to without having a deadline of turning it back in (i.e. a library or professor).