👉 The appendix in "Appendix Math" is a collection of mathematical proofs, theorems, and exercises that extend beyond the main body of the book, providing deeper insights and additional practice problems. These supplementary materials are designed to help readers understand complex concepts more thoroughly, offering alternative approaches and rigorous derivations that enrich the mathematical narrative. While not essential for understanding the main text, the appendix serves as a valuable resource for those seeking to deepen their grasp of the subject matter.