Apparently the duo was considered part of the family.
Peano in an historical note refers its first explicit employment, although without a general enunciation, to Maurolycus in his work, Arithmeticorum libri duo (Venice, 1575).
In the preface to his Arithmeticae libri duo et totidem Algebrae (1560) he says: " The name Algebra is Syriac, signifying the art or doctrine of an excellent man.
Of other writers who published works about the end of the 16th century, we may mention Jacques Peletier, or Jacobus Peletarius (De occulta parte Numerorum, quam Algebram vocant, 1558); Petrus Ramus (Arithmeticae Libri duo et totidem Algebrae, 1560), and Christoph Clavius, who wrote on algebra in 1580, though it was not published until 1608.
(Non fecit Altissimus unum saeculum sed duo, 4 Ezra vii.
Institutionum Chronologicarum libri duo, by Bishop Beveridge.
Dialogorum de Trinitate libri duo (Hagenau, 1532); two reprints of 1 and 2, to pass for originals; No.
When in 311 B.C. the people took the appointment of these lieutenants into their own hands the title was changed from "praefects" to duo viri navales, or "two naval men"; but under the empire the admirals went by their old name of praefects.
Have the usual meaning (Duo = u l - uo, L 2 uo = Du 1 - Auo, .
16 54" (1655); "Tractatus duo, prior de cycloide, posterior de cissoide et de curvarum turn linearum dthivvec turn superficierum RrXarva,uw" (1659); "Mechanica, sive de motu tractatus geometricus" (three parts, 1669-1670-1671); "De algebra tractatus historicus et practicus, ejusdem originem et progressus varios ostendens" (English, 1685); "De combinationibus alternationibus et partibus aliquotis tractatus" (English, 1685) "De sectionibus angularibus tractatus" (English, 1685); "De angulo contactus et semicirculi tractatus" (1656); "Ejusdem tractatus defensio" (1685); "De postulato quinto, et quinta definitione, lib.
The best editions of the works of Apollonius are the following: (1) Apollonii Pergaei Conicorum libri quatuor, ex versione Frederici Commandini (Bononiae, 1566), fol.; (2) Apollonii Pergaei Conicorum libri octo, et Sereni Antissensis de Sectione Cylindri et Coni libri duo (Oxoniae, 1710), fol.
(this is the monumental edition of Edmund Halley); (3) the edition of the first four books of the Conics given in 1675 by Barrow; (4) Apollonii Pergaei de Sectione Rationis libri duo: Accedunt ejusdem de Sectione Spatii libri duo Restituti: Praemittitur, e g c., Opera et Studio Edmundi Halley (Oxoniae, 1706), 4to; (5) a German translation of the Conics by H.
His treatise De natura novi orbis libri duo (Salamanca, 1588-1589) may be regarded as the preliminary draft of his celebrated Historia natural y moral de las Indias (Seville, 1590) which was speedily translated into Italian (1596), French (1597), Dutch (1598), German (1601), Latin (1602) and English (1604).
In his principal work, De docta ignorantia (1440), supplemented by De conjecturis libri duo published in the same year, he maintains that all human knowledge is mere conjecture, and that man's wisdom is to recognize his ignorance.
Dualis, containing two, from duo), a philosophical term applied to all theories which attempt to explain facts by reference to two coexistent principles.
Besides the controversial Tracts, which appeared in 1783-1784-1786, and were republished in 1789 and 1812, Horsley's more important works are: - Apollonii Pergaei inclinationum libri duo (1770); Remarks on the Observations ...
2 Determinatio superficiei minimae rotatione curvae data duo puncta jungentis circa datum axem ortae (GÃ¶ttingen, 1831).
(1560); Poetarum veterum ecclesiasticorum opera Christiana (1562); De Re Poetica libri septem (1565); Rerum Misnicarum libri septem (1569); (posthumous) Originu7n illustrissimae stirpis Saxonicae libri septem (1597); Rerum Germaniae magnae et Saxoniae universae memorab'lium mirabiliumque volumina duo (1609).
Principal writings are: Germania Antiqua (1616), Siciliae Antiquae libri duo, Sardinia et Corsica Antiqua (1619), and the posthumous Italia Antiqua (1624) and Introductio in Universam Geographiam (1629).
We need mention only the chief of them - the Collectio Anselmo dedicata, by an unknown author of the end of the 9th century; the Libri duo de synodalibus causis et disciplinis ecclesiasticis, 3 compiled about 906 by Regino, abbot of Pram, and dedicated to Hatto of Mainz, relatively a very original treatise; the enormous compilation surchard.
9 De Vita propria sermonum inter liberos libri duo (Haarlem, 1817).
To this work were added two treatises, entitled Tractatus duo de speciebus et magnitudine figurarum curvilinearum, the one bearing the title Tractatus de Quadratura Curvarum, and the other Enumeratio linearum tertii ordinis.