Currently, the training of specialists in fundamental scientific disciplines, including mathematics, is becoming increasingly important. In this regard, at different levels, the content of classes in mathematics is expanding and deepening, which requires the involvement of new teaching aids. In particular, it turns out to be advisable to widely apply various improvised benefits. One of these manuals is intended to serve as a reference book "Basic Mathematical Formulas." The reference book is designed for readers who have completed some kind of training cycle, who, remembering the existence of the necessary formulas, can quickly find them for practical use.