Artium principia: or, the knowledge of the first principles of the mathematicks made easy and intelligible to the meanest capacity. Design'd for the more regular and speedy Introduction of young Beginners into those Sciences. The Whole being contrived with the utmost demonstrative Plainness, and contained under the following Divisions; viz. 1. Geometrical Definitions of Lines, Angles, &c. from a Point to a Solid. 2. Preparatory Problems; or the Rudionents of Practical Geometry. 3. Geometrical Theorems; or Speculative Geometry, with a new and easy Method of Demonstration. 4. The Construction or Fabrick of Sines, Tangents, &c. by Lines and natural Numbers. Also, 5. A brief and clear Explication of the Tables of Logarithms of absolute Numbers, and the Logarithemical Sines, Tangents, &c. together with their Use and Operation in the Mathematicks. 6. Trigonometry; or the Doctrine of Triangles, both Plain and Spherical, performed three several ways, viz. Arithmetically, Instrumentally, and Geometrically. Wherein are shewn the Mistakes of divers Trigonometrical Writers. To which is added, something of the nature of proportion, and the chief Grounds and Reasons for varying thereof. The whole illustrated with variety of suitable schemes, and practical Observations. By Henry Boad.

Date:

MDCCXXXIII. [1733]