The Elements of Euclid; viz. the first six books, together with the eleventh and twelfth. Also the book of Euclid's Data. By R. Simson. To which is added, A treatise on the construction of the trigonometrical canon [by J. Christison] and A concise account of logarithms [by A. Robertson].1814 |
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Αποτελέσματα 1 - 5 από τα 44.
Σελίδα
... NOTES on the DATA , • ▸ 287 355 455 • 473 • 485 492 504 PLANE TRIGONOMETRY , • CONSTRUCTION of the TRIGONOMETRICAL CANON , · Of LOGARITHMS , SPHERICAL TRIGONOMETRY , PREFACE . THE opinions of the moderns concerning the author.
... NOTES on the DATA , • ▸ 287 355 455 • 473 • 485 492 504 PLANE TRIGONOMETRY , • CONSTRUCTION of the TRIGONOMETRICAL CANON , · Of LOGARITHMS , SPHERICAL TRIGONOMETRY , PREFACE . THE opinions of the moderns concerning the author.
Σελίδα
... which are also added , the Elements of Plane and Spherical Trigonometry , which are commonly taught after the Elements of Euclid . ADVERTISEMENT . THE favourable reception which former editions of Professor PREFACE . vii.
... which are also added , the Elements of Plane and Spherical Trigonometry , which are commonly taught after the Elements of Euclid . ADVERTISEMENT . THE favourable reception which former editions of Professor PREFACE . vii.
Σελίδα 189
... sphere is a solid figure described by the revolution of a semicircle about its diameter , which remains unmoved . XV . The axis of a sphere is the fixed straight line about which the semicircle revolves . XVI . The centre of a sphere is ...
... sphere is a solid figure described by the revolution of a semicircle about its diameter , which remains unmoved . XV . The axis of a sphere is the fixed straight line about which the semicircle revolves . XVI . The centre of a sphere is ...
Σελίδα 278
... sphere . Let the spheres be cut by a plane passing through the centre ; the common sections of it with the spheres shall be circles ; because the sphere is described by the revolution of a semicircle about the diameter remaining ...
... sphere . Let the spheres be cut by a plane passing through the centre ; the common sections of it with the spheres shall be circles ; because the sphere is described by the revolution of a semicircle about the diameter remaining ...
Σελίδα 280
... each of the sides KL , LM , ME , as has . been done upon BK , and the like be done also in the other three quadrants , and in the other hemisphere ; there shall .. 1 be formed a solid polyhedron described in the sphere ,. 280 THE ELEMENTS.
... each of the sides KL , LM , ME , as has . been done upon BK , and the like be done also in the other three quadrants , and in the other hemisphere ; there shall .. 1 be formed a solid polyhedron described in the sphere ,. 280 THE ELEMENTS.
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ABC is given AC is equal altitude angle ABC angle BAC base BC bisected BOOK XI centre circle ABCD circumference common logarithm cone cylinder demonstrated described diameter drawn equal angles equiangular equimultiples Euclid excess fore given angle given in magnitude given in position given in species given magnitude given ratio given straight line gnomon greater join less Let ABC logarithm meet multiple opposite parallel parallelogram AC perpendicular point F polygon prism proportionals proposition pyramid Q. E. D. PROP radius rectangle CB rectangle contained rectilineal figure remaining angle right angles segment side BC similar sine solid angle solid parallelopipeds square of AC straight line AB straight line BC tangent THEOR third triangle ABC triplicate ratio vertex wherefore
Δημοφιλή αποσπάσματα
Σελίδα 3-7 - IF a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the rectangle contained by the parts.
Σελίδα 16 - Any two sides of a triangle are together greater than the third side.
Σελίδα 26 - Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Σελίδα 16 - If, from the ends of the side of a triangle, there be drawn two straight lines to a point within the triangle, these shall be less than, the other two sides of the triangle, but shall contain a greater angle. Let...
Σελίδα 304 - Again ; the mathematical postulate, that " things which are equal to the same are equal to one another," is similar to the form of the syllogism in logic, which unites things agreeing in the middle term.
Σελίδα 4 - DL is equal to DG, and DA, DB, parts of them, are equal ; therefore the remainder AL is equal to the remainder (3. Ax.) BG : But it has been shewn that BC is equal to BG ; wherefore AL and BC are each of them equal to BG ; and things that are equal to the same are equal to one another ; therefore the straight line AL is equal to BC.
Σελίδα 147 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Σελίδα 3-16 - To divide a given straight line into two parts, so that the rectangle contained by the whole, and one of the parts, may be equal to the square of the other part.
Σελίδα 159 - SIMILAR triangles are to one another in the duplicate ratio of their homologous sides.