Evaluating J sub N(z) via Series Representation.
Abstract
An algorithm and subroutine for evaluating J sub N(z) were developed to be used in determining the scattering of a plane elastic waves from a single, hollow cylindrical cavity. Two series were developed for computation purposes: one for the real part of J sub N(z) and one for the imginary part of J sub N(z). The subroutine utilizes double-precision arithmetic. The output includes the complex number EZ where the real and imaginary parts represent the magnitudes of upper bounds of errors in respective parts of J sub N(z). Computational studies strongly suggest that for true value of z = or < 10, the magnitudes of the error in the real and imaginary parts of J sub N(z) are less than 0.000001. From the same studies, computational times were always less than 0.04 second.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 28, 1982
- Accession Number
- ADA124690
Entities
People
- Joel Carroll