A new system of arithmetick theorical and practical: Wherein the science of numbers is demonstrated in a regular course frm its first principles, thro' all the parts and branches thereof; either known to the ancients, or owing to the improvements of the moderns; the practice and application to the affairs of life and commerce being also fully explained so as to make the whole a complete system of theory for the purposes of men of science and of practice for men of business
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