| Peter Nicholson - Mathematics - 1825 - 1046 pages
...hath no magnitude. 2. A line is length without breadth. 3. the extremities of a line are points. 4. A straight line is that which lies evenly between its extreme points. 5. A superficies is that which hath only length and breadth. 6. The extremities of a superficies are... | |
| James Ryan - Astronomy - 1827 - 408 pages
...is the boundary of extension. 3. Extension has three dimensions; length, breadth, and thickness. 4. A line is length without breadth. The extremities of a line are called points. A point therefore has no extension. 5. A straight line, or right line, is the shortest... | |
| John Radford Young - Euclid's Elements - 1827 - 228 pages
...by any definition, a better notion of it than the mere mention of its name suggests. Euclid says, " A straight line is that which lies evenly between its extreme points*;" a definition which is both unsatisfactory and useless. Others, following Archimedes, define it as "the... | |
| Robert Simson - Trigonometry - 1827 - 546 pages
...Note*, magnitude. II. A line is length without breadth. III. The extremities of a line are points. IV. A straight line is that which lies evenly between its extreme points. V. A superficies is that which hath only length and breadth. VI. The extremities of a superficies are... | |
| Augustus De Morgan - 1831 - 108 pages
...on that subject. A point is defined to be that " which has no parts, and which has no magnitude ;" a straight line is that which " lies evenly between its extreme points." Now, let any one ask himself whether he could have guessed what was meant, if, before he began geometry,... | |
| Euclid - 1835 - 540 pages
...v^y^/ See Notes. II. A line is length without breadth. III. The extremities of a line are points. IV. A straight line is that which lies evenly between its extreme points. V. A super/ides is that which hath only length and breadth. VI. The extremities of a superficies are... | |
| Mathematics - 1836 - 352 pages
...cannot be mistaken for one moment, unless it be by means of the attempt to explain them by saying that a straight line is ' that which lies evenly between its extreme points.' The line and surface are distinct species of magnitude, as much so as the yard and the acre. The first... | |
| Euclides - 1838 - 264 pages
...extremities of a line are points; and the intersection of one line with another is also a point. IB. A straight line is that which lies evenly between its extreme points. The idea of a geometrical straight line may be gained from that of a physical stretched line or thread.... | |
| Adrien Marie Legendre - Geometry - 1841 - 288 pages
...object the measure of extension. % Extension has three dimensions, length, breadth, and thickness. 2. A line is length without breadth. The extremities of a line are called points. A point, therefore, has no extension. 3. A straight or right line is the shortest way... | |
| Euclides - 1842 - 316 pages
...IL A line is that which has length without breadth. III. The extremities of a line are points. IV. A straight line is that which lies evenly between its extreme points. V. A superficies is that which has only length and breadth. VI. The extremities of a superficies are... | |
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