Records arithmetick: or, The ground of arts [electronic resource] : teaching the perfect work and practice of arithmetick, both in whole numbers and fractions, after a more easie and exact forme then in former time hath been set forth: made by M. Robert Record, D. in Physick. Afterwards, augmented by M. John Dee. And since enlarged with a third part of rules of practice, abridged into a briefer method then hitherto hath been published ... by John Mellis. And now diligently perused, corrected, illustrated and enlarged; with an appendix of figurate numbers ... and new tables of interest ... the first calculated by R.C. ... and the latter diligently calculated by Ro. Hartwell, Philomathemat..