Journal
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
Volume 211, Issue 2, Pages 131-140Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cam.2006.11.021
Keywords
global adaptive quadrature; infinite interval; end point singularity; piecewise-smooth integrand
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Adaptive quadrature codes process a collection of subintervals one at a time. We show how to process them all simultaneously and so exploit vectorization and the use of fast built-in functions and array operations that are so important to efficient computation in MATLAB. Using algebraic transformations we have made it just as easy for users to solve problems on infinite intervals and with moderate end point singularities as problems with finite intervals and smooth integrands. Piecewise-smooth integrands are handled effectively with breakpoints. (C) 2006 Elsevier B.V. All rights reserved.
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