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arguments
Posted:
Oct 30, 1996 12:29 AM


I am using FindRoot to solve a system of nonlinear algebraic equations. The number of equations and variables depends upon a number input at the beginning of the notebook. Since the equations are specified to FindRoot in a single list, there is no problem adding more equations to the system  just append them to the initial list of equations. However, I am not clear on how one adds new variables that FindRoot is to solve for. This is because they must each be given as separate arguments. For context:
FindRoot[{eqtn1,eqtn2,...},{var1,guess},{var2,guess},...]
As you can see, I may not simply build a list of variables dynamically and hand it to FindRoot because a list is a _single_ entity or argument. FindRoot requires a sequence of arguments (multiple entities) to specify the variables.
Ideally I would like a way to have a list be interpreted as a sequence of arguments  but I have found no clear way to do this in the book and I am wondering if it may not be possible.
Does anyone have a way to do this kind of thing? Or am I just being foolish and there are better ways to specify the problem and solution in Mathematica?
Thanks in advance, Guy Delamarter
 ============================================================================== Guy Delamarter <delamart@callisto.pas.rochester.edu> ******************************************************************************



