Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
Solution of Nonlinear System of Equations (BROYDEN etc.)
Hi all, I've this system of nonlinear equations that I want to solve iteratively and was planning on using BROYDEN to do it. What I'm wondering is how do I implement the function in BROYDEN so that I can change parameters on the fly. For instance, in the example in the help file, one of the equations is: 3x - COS(yz) - 1/2 = 0 They then hard-wire the constants (3, 1/2, etc.) into BROYFUNC. But let's say I want to be able to change the 3x to ax where "a" is a constant I specify and change as the program runs. Is there a way to do this in a way the BROYDEN call will understand? I couldn't find the source code for BROYDEN to see if this is possible. Thanks! Best, -Johnny ------------------------------------------- Johnny Lin CIRES, University of Colorado Work Phone: (303) 735-1636 Web: http://cires.colorado.edu/~johnny/ -------------------------------------------