
Livro digital
Título:
Planes and Spherical Trigonometry (1915)
Autor:
George Wentworth, David Eugene Smith
Categoria:
Tecnologia > Geral
Doador:
Raffaello D. N.
Sinopse:
If you need a compact path into trigonometry, this textbook starts by building the core tools in a very deliberate order: trigonometric functions of acute angles, the use of tables, logarithms, and the right triangle before moving on to the oblique triangle. That sequence makes the structure of the subject easy to follow rather than treating formulas as isolated facts.
The contents then split cleanly into plane trigonometry and spherical trigonometry, with applications woven in after the foundations are in place. The table of contents suggests a practical, classroom-ready text, moving from computation and identities to triangle solving and real-world uses, then extending the same logic into spherical problems.
Written by George Wentworth and David Eugene Smith, this is a formal instructional work with a strong pedagogical spine. Readers get a systematic introduction to the subject, a clear progression from basic functions to more advanced triangle work, and a historically grounded treatment of trigonometry that emphasizes method, tables, and applications.