| Robert Gibson - 1811 - 580 pàgines
...degree, that is, miles. The lines of tangents, seruitangents, and secants serve to find the centres and poles of projected circles in the stereographical projection of the sphere. Tlte line of sinesis principally used for the orthographic projection of the sphere. The lines of latitudes... | |
| George Adams - 1813 - 648 pàgines
...difference of longitude. The lines of tangents, semitangents, and secants serve to .find the centres and poles of projected circles in the stereographical projection of the sphere. The line of sines is principally used for the orthographic projection of the sphere; but as the application... | |
| Robert Gibson - 1832 - 290 pàgines
...equatorial degree, that is, miles. The lines of tangents, semitangents and secants serve to find the centres and poles of projected circles in the stereographical projection of the sphere. The line of sines is principally used for the orthographic projection of the sphere. The lines of latitudes... | |
| |