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 |
From inside the book
Results 6-10 of 49
Page 287
... Greek Text ; and the Reasons of the Alterations which have been made . As also Observations on some of the Propositions . By ROBERT SIMSON , M. D. Emeritus Professor of Mathematics in the University of Glasgow . LONDON : Printed for F ...
... Greek Text ; and the Reasons of the Alterations which have been made . As also Observations on some of the Propositions . By ROBERT SIMSON , M. D. Emeritus Professor of Mathematics in the University of Glasgow . LONDON : Printed for F ...
Page 290
... Greek copies , a more distinct one is given from a property of a plane super- ficies , which is manifestly supposed in the Elements , viz . that a straight line drawn from any point in a plane to any other in it , is wholly in that ...
... Greek copies , a more distinct one is given from a property of a plane super- ficies , which is manifestly supposed in the Elements , viz . that a straight line drawn from any point in a plane to any other in it , is wholly in that ...
Page 292
... Greek text , but is as necessary as the other : And that the case left out has been formerly in the text , appears plainly from this , that the second part of Prop . 5. which is necessary to the demonstration of this case , can be of no ...
... Greek text , but is as necessary as the other : And that the case left out has been formerly in the text , appears plainly from this , that the second part of Prop . 5. which is necessary to the demonstration of this case , can be of no ...
Page 300
... Greek editor has ig- norantly inserted the words , " but if not , one of the two " BE , ED , is the greater : Let BE be the greater , and produce it to F : " as if it was of any consequence whether the greater or lesser be produced ...
... Greek editor has ig- norantly inserted the words , " but if not , one of the two " BE , ED , is the greater : Let BE be the greater , and produce it to F : " as if it was of any consequence whether the greater or lesser be produced ...
Page 301
... Greek nor the Latin translation literally , but have given what is plainly the meaning of the proposition , without mentioning the angle of the semicircle , or that which some call the cornicular angle , which they conceive to be made ...
... Greek nor the Latin translation literally , but have given what is plainly the meaning of the proposition , without mentioning the angle of the semicircle , or that which some call the cornicular angle , which they conceive to be made ...
Other editions - View all
Common terms and phrases
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
Popular passages
Page 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.
Page 16 - Any two sides of a triangle are together greater than the third side.
Page 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.
Page 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...
Page 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.
Page 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.
Page 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.
Page 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.
Page 159 - SIMILAR triangles are to one another in the duplicate ratio of their homologous sides.