PDQ-1, Partial, Differential Equation Solution, Graphics Version I.
PICATINNY ARSENAL DOVER N J
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PDQ 1 is an interactive graphics solution to an important class of second order linear partial differential equations Laplace and Poisson. Finite difference approximations are made of the derivatives, in cartesian coordinates, employing a generalized irregular star for the computation stencil. Program options include variable grid size, curved boundaries, mirror boundary edges for repeating sections, and hard copy plotter of problem domain with contour maps of selected values of the solved variable. Use of the program is illustrated with problems in electric field potential distribution, torsion of bars, and steady state temperature distribution. PDQ 1 was written for a CDC 65001700274 facility operating under SCOPE 3.3, IGS V.2 employing 10 overlays and 50K bytes of storage. Author
- Theoretical Mathematics
- Computer Programming and Software
- Computer Hardware