Conference paper
Wavefront and caustic surfaces of refractive laser beam shaper
David L. Shealy, John A. Hoffnagle
SPIE Optical Engineering + Applications 2007
Paper
Checking the Calculation of Gradients
Abstract
Many numerical methods call for repeated calculation of the first partial derivatives of a given function of several variables. Errors m a program for that calculation can be hard to discover. A procedure IS offered for testing the program and locating its errors. © 1982, ACM. All rights reserved.
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