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Ludus mathematicus: or, The mathematical game
explaining, the description, construction, and use of the numerical table of proportion. By help whereof, and of certain chessmen (fitted for that purpose) any proportion, arithmetical or geometrical (without any calculation at all, or use of pen) may be readily, and with delight resolved, when the term required, exceeds not 100000. By E.W -
Decimal arithmetick
wherein the whole art is made easy to any indifferent capacity. By notation, addition, substraction, multiplication, and division. With several variations. Also, reduction, with the golden rule, or rule of three, shewing several wayes of measuring circles, globes, balls or cylinders, &c. and to find the solid content of any butt, pipe or cask cones and their frustums, with several waies of measuring taper timber. To which is added the description of a very easy instrument for the taking of any heights or distances without geometry or trigonometry, scale compasses or line of cords, only counting the divisions of the instrument, with the explanation of the multiplication of decimal or vulgar fractions, the rules of practise in decimals and so plain a way of extracting the square root almost as easy division. Also an essay to gunnery, shewing several waies of finding any inaccessible distance of altitude, within common sight, with very many things never before made publick, of which you m -
A new systeme of the mathematicks ...
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A new systeme of the mathematicks
Containing I. Arithmetick, as well natural and decimal, as in species, or the principles of Algebra. II. Practical geometry, together with the first six books of Euclid's Elements, as also the eleventh and twelfth, symbolically demonstrated. III. Trigonometry plain and spherical. IV. Cosmography, or a description of the heavens. V. Navigation, or sailing by a plain or Mercator's Chart; as also by the Arch of a Great Circle, &c. VI. The Doctrine of the sphere, grounded on the motion of the earth, according to the old Pythagorean and Copernican systeme. VII. Astronomical tables, with tables of logarithms, natural and artificial sines and tangents, and versed sines. VIII. A new geography, or a description of the most eminent countries and coasts of the world, with maps of them, and tables of their latitude and longitude