A compendium of algebra [electronic resource] : containing plain, easy, and concise rules in that mysterious science. Exemplify'd by Variety of Problems, both in Arithmetick and Geometry, with the Solution of their Equations in Numbers. By a Universal Method of Extracting the Roots out of all Kind of Equations, either Pure or Adfected, with great Ease and Expedition. Applied to finding the Area and Periphery of the Circle, and the Solidity and Superficies of the Sphere; making of Sines, Tangents, and Logarithms, with great Facility. To which is added, a treatise of interest and annuities, taking of leases, &c. With all their Various Cases, either at Simple or Compound Interest, perform'd by Theorems or Rules plainly demonstrated, and express'd in Words at length. Also rules to be observed in estimating the value of annuities, and leases for lives, &c. By John Ward, of Chester; Formerly Chief Surveyor and Gauger-General in the Excise. The second edition, carefully corrected; And Improved with large Additions, throughout the Whole, By the Author.