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Manuscript Title: Program to calculate the spectral harmonic expansion coefficients of the two scalar fields product.
Authors: Z. Martinec
Program title: VCSUM
Catalogue identifier: ABHK_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 54(1989)177
Programming language: Fortran.
Computer: SIEMENS.
Operating system: BS2000.
Keywords: General purpose, Differential equations, Electromagnetic, Truncated spectral, Harmonic expansion, Vector-coupled sum, Legendre and fourier, Transforms.
Classification: 4.3, 10.

Subprograms used:
Cat Id Title Reference
AAPE_v1_0 GISP CPC 32(1984)191

Nature of problem:
There is a wide range of applications of spectral method in solving partial differential equations in mathematical physics.

Running time:
The CPU-time is roughly 10 s for a cutoff degree N=10, about 35 s for N= 20 and 130 s for N=30.