tapxworld/chinatextbook

ChinaTextbook is a repository that collects and hosts PDF files of Chinese school and university textbooks, covering subjects from primary school all the way through higher education. The README is written in Chinese. It explains that while official Chinese education websites technically provide free access to these resources, access is often restricted for ordinary people, and some individuals exploit this by selling the materials online with private watermarks. The repository aims to counter this by making the textbooks freely available to everyone, with a particular mention that it hopes to help overseas Chinese families stay connected to the mainland Chinese curriculum. The collection includes mathematics textbooks organized by grade level from first grade through university, with the university section covering topics like higher mathematics (calculus), linear algebra, discrete mathematics, and probability theory. The PDF files from major publishers are directly linked from the repository. Because some textbooks exceed GitHub's 50MB file size limit, they are split into multiple numbered parts. The README includes a companion tool that merges those split files back into a single PDF. You would use this repository if you are a student, teacher, or parent in mainland China, the overseas Chinese diaspora, or anyone who needs access to the standard Chinese K-12 or university mathematics curriculum materials at no cost. There is no software to install or run; you download the PDF files directly from GitHub. The repository language listed is Roff, which is likely a misdetection by GitHub rather than an intentional choice. The project is entirely a document archive with a small utility tool for reassembling split files.