Authors: П.В.Преображенский
Output data: Москва, 1886 г.
Inventory data: inventory № 091258
Annotation:
Despite the fact that trigonometry belongs to very developed areas of elementary mathematics, it has sides that present quite significant difficulties, namely, achieving a certain degree of accuracy of the result. The proposed guide includes both a systematic presentation of the most important provisions of trigonometry required by programs, and ways to solve its problems without logarithms. The solution gives overall accuracy results significantly superior to the results obtained even on seven-digit tables.