Foundations and formulas for plane and spherical trig, with the analytic geometry you need to solve real problems.
This edition guides readers through the core principles, from lines and intersections to the geometry of spheres, using clear, methodical steps.
Readers will find practical tools for converting between rectangular and polar coordinates, deriving line equations, and handling common trig and geometric tasks. The text combines classic theory with worked examples and rules that support computation and deeper understanding of both plane and spherical triangles.
- Core analytic-geometry techniques for lines, coordinates, and intersections
- Coordinate transformations between rectangular and polar systems
- Comprehensive treatment of spherical triangles, including spherical excess and related formulas
- Worked examples, rules, and strategies for accurate calculation and problem solving
Ideal for students and professionals seeking a solid, historical approach to plane and spherical trigonometry with practical methods still useful today.