An Analytical Treatise on Plane and Spherical Trigonometry, and the Analysis of Angular Sections: Designed for the Use of Students in the University of London (Classic Reprint)

Excerpt from An Analytical Treatise on Plane and Spherical Trigonometry, and the Analysis of Angular Sections: Designed for the Use of Students in the University of London

The system has however been changed, and analytical science has in these countries at length obtained that attention as an elementary part of mathematical education, to which its importance so justly entitles it. Students who are about to com mence trigonometry have now generally obtained a competent knowledge of algebra, and the reasons which hitherto rendered it expedient to treat the subject geometrically no longer exist. In the fol lowing treatise I have accordingly brought to my aid the powerful resources of analysis. On the property of similar triangles, already mentioned, as a basis, I have attempted to raise the whole super structure of trigonometrical science by reasoning purely analytical.' Nor have I found it necessary to resort to any principles beyond what must be considered the rudiments of algebra, except in those higher departments of trigonometry which are only read by students who have made consider able progress in mathematics. Those who are conversant with the first principles of elementary algebra are competent to study all those parts of the present work which are necessary for the ele ments of natural philosophy, and which are di stinguished by an asterisk in the table of contents.

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