Trigonometry Improv.D, and Projection of the Sphere, Made Easy: Teaching the Projection of the Sphere Orthographick, and Stereographick: As Also, . for the Various and Most Useful Methods
Trigonometry Improv.D, and Projection of the Sphere, Made Easy: Teaching the Projection of the Sphere Orthographick, and Stereographick: As Also, . for the Various and Most Useful Methods 12+