cover image: Bulletin of the Calcutta Mathematical Society  1908

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20.500.12592/7f2hq1

Bulletin of the Calcutta Mathematical Society 1908

1908

we should give up our attempt to render accessible the results of. the researohes-Whichlitive placed lioinear4 at the side of the.dim or six Veat _Mathematioiens Of the nineteenth century and in the forifinut of the suathematielane of the twentieth century it need net perhops he the suture with the ei:fical employed In those researches. [...] The angle 9 Is that which the projection of the getteratoe on the my plane makes with the w-aris and the generator 0 itself makes an angle g with the ay-plane /t This ruled surfwe is the surface whose properties will now be consdered and to which the name of Wilms Surface. [...] Sesite.- All Ass* eurtasiet might be waled SftibIst eurbtote and the number which is the ratio of the rate of twisting to the rate of &tiling might be called the pitch of the corresponding surface. [...] If the origin is transferred to the point a y.10 zest) and the axes of y and are then turned through an angle of 45 about the x-axis so that the ohiirte alit becomes the new e.axie the equation of the surface referred to the new axes is 'Cos 1100(30— +2y2(y_+x)-440.y.41. [...] The so-ordinates of the double point are = 9211-+2.1 (p+al)—(1211♦ --41P) =14-8.111 4+41)— (at +t! tit nP) If the new origin is taken at the foot of the perpendicular drawn to the plane from the centre of the guiding circle the transformation scheme is e' !li e+p a It Is I li /MI.. 2.14 e: ni no n and the equation of the section is (mos + + mp) [xi+ y2 +p2 as] — Weis + + np) X Rice 1/211+141)9
technology medicine science
Pages
87
Published in
India
SARF Document ID
sarf.120023
Segment Pages Author Actions
Frontmatter
i-i unknown view
Calcutta Mathematical Society
1-1 unknown view
Proceedings of the Calcutta Mathematical Society
2-4 unknown view
The Method of Poincare
5-8 P.G. view
On a Certain Cubic Surface Called the Mobius Surface
9-30 C.E. Cullis view
New Methods in the Geometry of a Plane Arc.—I
31-38 Syamadas Mukhopadhyaya view
On a Non-Analytical Potential Function
39-42 Ganesh Prasad view
Summary of Principal Mathematical Journals
43-52 unknown view
Societies and Academies
53-56 unknown view
Reviews
57-64 unknown view
Notes and News
65-xviii unknown view

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