[ < ] | [ > ] | [ << ] | [ Up ] | [ >> ] | [Top] | [Contents] | [Index] | [ ? ] |
59.1 Definitions for mnewton |
[ < ] | [ > ] | [ << ] | [ Up ] | [ >> ] | [Top] | [Contents] | [Index] | [ ? ] |
Default value: 10.0^(-fpprec/2)
Precision to determine when the mnewton
function has converged towards the solution.
See also mnewton
.
Default value: 50
Maximum number of iterations to stop the mnewton
function
if it does not converge or if it converges too slowly.
See also mnewton
.
Multiple nonlinear functions solution using the Newton method. FuncList is the list of functions to solve, VarList is the list of variable names, and GuessList is the list of initial approximations.
The solution is returned in the same format that solve()
returns.
If the solution isn't found, []
is returned.
This function is controlled by global variables newtonepsilon
and newtonmaxiter
.
(%i1) load("mnewton")$ (%i2) mnewton([x1+3*log(x1)-x2^2, 2*x1^2-x1*x2-5*x1+1], [x1, x2], [5, 5]); (%o2) [[x1 = 3.756834008012769, x2 = 2.779849592817897]] (%i3) mnewton([2*a^a-5],[a],[1]); (%o3) [[a = 1.70927556786144]] (%i4) mnewton([2*3^u-v/u-5, u+2^v-4], [u, v], [2, 2]); (%o4) [[u = 1.066618389595407, v = 1.552564766841786]] |
To use this function write first load("mnewton")
. See also newtonepsilon
and newtonmaxiter
.
[ << ] | [ >> ] | [Top] | [Contents] | [Index] | [ ? ] |
This document was generated by Robert Dodier on September, 20 2006 using texi2html 1.76.