 | William Shaffer Hall - 1902 - 160 стор.
...tangent to the curve of intersection at any point g. By Prob. 1 30, the tangent plane to the surface at g is X. The tangent plane intersects the plane R in...the horizontal trace of each secant plane. Through «*, any line, as HL, is drawn intersecting both bases. HL is taken as the horizontal trace of a plane... | |
 | Otis Everett Randall - 1905 - 232 стор.
...contain an element of the surface of the cylinder. Therefore a straight line through the given point and parallel to the elements of the cylinder will be a line of the required plane (see Section 42) and should pierce H and V in points of the required traces. Since... | |
 | Ervin Kenison, Harry Cyrus Bradley - 1917 - 328 стор.
...to all the elements of the cylinder. Hence, when we start to find the intersection by drawing a line through the vertex of the cone parallel to the elements of the cylinder, this line coincides with an element of the cone. Fio. 326. In Fig. 326, which shows an J?-projection... | |
 | Charles Henry Schumann - 1927 - 264 стор.
...right circular cylinder and a right circular cone. (Plane Method.) Analysis.—Pass a system of planes through the vertex of the cone parallel to the elements of the cylinder. The planes cut elements from each surface which by their intersections determine points on the required... | |
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G, through the vertex of the cone parallel to the elements of the cylinder, will be a line of each auxiliary plane. 