scholarly journals FORTRAN PROGRAM FOR CALCULATING THE SOLID ANGLE SUBTENDED BY ONE CIRCULAR DISC AT ANOTHER.

1967 ◽  
Author(s):  
I. R. Williams ◽  
A. M. Craig, Jr. ◽  
C. L. Thompson
Keyword(s):  
Solid Angle ◽  
Fortran Program ◽  
Circular Disc

Reply by author to Dr. LaFehr

Geophysics ◽  
1977 ◽  
Vol 42 (4) ◽  
pp. 877-877
Author(s):  
Shri Krishna Singh
Keyword(s):  
Closed Form ◽  
Solid Angle ◽  
Short Note ◽  
Circular Disc ◽  
Closed Form Expression ◽  
Gravitational Attraction ◽  
Form Expression ◽  
Practical Usefulness ◽  
Solid Angles ◽  
Classic Paper

It is difficult to include all references when dealing with a subject so well studied as the gravitational attraction of a circular disc. Although the practical usefulness of Nettleton’s paper can not be denied by anyone, it nevertheless gives no details (except for some references) of the computation of solid angles subtended by a disc from which his graphs (Geophysics, 1942, Figure 4) result. My short note deals with (in what I consider an easy way of) obtaining a closed form expression for the solid angle. For applications of the result the reader would do well to look up Nettleton’s classic paper.

Tables of Solid Angles: I. Solid Angle Subtended by a Circular Disc

1963 ◽  
Vol 17 (82) ◽  
pp. 207
Author(s):  
J. W. W. ◽  
A. V. H. Masket ◽  
W. C. Rodgers
Keyword(s):  
Solid Angle ◽  
Circular Disc ◽  
Solid Angles

GRAVITATIONAL ATTRACTION OF A CIRCULAR DISC

Geophysics ◽  
1977 ◽  
Vol 42 (1) ◽  
pp. 111-113 ◽  
Author(s):  
Shri Krishna Singh
Keyword(s):  
Cross Sections ◽  
Solid Angle ◽  
Vertical Component ◽  
Circular Disk ◽  
Circular Disc ◽  
Gravitational Attraction ◽  
Exploration Seismology ◽  
Solid Angles ◽  
The Cross

The vertical component of gravitational attraction [Formula: see text] of a circular disk is of some interest in geophysics since it can be used to obtain attraction of 3-D bodies whose parallel sections are circular and also since the solid angle Ω subtended by a disc at any point is proportional to [Formula: see text] at the same point (Ramsey, 1940, p. 36). Solid angles may be needed in some diffraction calculations in exploration seismology (see, e.g., Hilterman, 1975). It is clear, however, that in calculation of attraction from 3-D bodies, approximation of the cross‐sections by a polygon (Talwani and Ewing, 1960) has wider application.

On the solid angle subtended by a circular disc

1971 ◽  
Vol 93 (1) ◽  
pp. 163-167 ◽  
Author(s):  
R.P. Gardner ◽  
K. Verghese
Keyword(s):  
Solid Angle ◽  
Circular Disc
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