CONANT'S TRIGONOMETRY 



By LEVI L. CONANT, Ph.D., Professor of Mathematics 

 in the Worcester Polytechnic Institute. 



Plane and Sphericil Trigonometry, with Tables Si. 20 



Plane and Spherical Trigonometry, without Tables .85 



Plant Trigonometry, with Tables . .90 



Plane Trigonometry, without Tables 60 



Logarithmic and Trigonometric Tables .50 



THIS work includes the general subject ot mathematical 

 investigation bv means ot trigonometric functions, — it is 

 not limited to the solution ot triangles. It aims to equip 

 the student for subsequent study in eyery branch ot higher 

 mathematics needed in the different branches ot engineering 

 and in the physical sciences. Plane surveying is regarded as 

 a very important application ot trigonometry, and conse- 

 quently a clear, comprehensive treatment is given ot the tri- 

 angle and its application to surveying; but this is supplemented 

 by ample material in trigonometric elimination, solution ot 

 trigonometric equations, generalization ot results, hyperbolic 

 functions, etc. 



^[ The book has great logical rigor. It is as remarkable tor 

 its scientific accuracy as tor its practical usetulness. The 

 character ot its exercises is also note\yorth\'. There is enough 

 abstract work to give ample practice in the mathematical prin- 

 ciples, while the unusual variety ot concrete problems illus- 

 trate the practical use of trigonometry in the applied sciences. 

 *i\ The trigonometric tunctions are defined and used as ratios 

 until the pupil has become familiar with them; after which 

 their geometrical representation as lines is also given. The 

 proofs ot the tormulas are as clear and intelligible as ihev are 

 rigorous. Under every topic or ever\' new t\pe ot example 

 a model solution is given, worked out in detail to help the 

 pupil over all legitimate obstacles. The arrangement and 

 t\'pograph\' ot the tables are the result of much experiment 

 and study b\- the author. 



A M K R I C A N BOOK COMPANY 



