Re: [Help-gsl] the system of nonlinear equations

[Jeremy Theler]

Hi

My two cents:

1. high-level solution: use my piece of software wasora from
www.seamplex.com/wasora that inputs a human-friendly input file and
interfaces with GSL. For example, this file
https://bitbucket.org/seamplex/wasora/src/master/examples/solve.was
solves the system of equations

  y = exp(-f(z)*x)
  x = integral(f(z'), z', 0, z)
  2 = x+y+z

where f(z) is a pointwise-defined function like

$ wasora solve.was 
 x =    0.319603
 y =    0.784170
 z =    0.896227
$

2. low-level solution: see
https://bitbucket.org/seamplex/wasora/src/master/src/multiroot.c


Regards
--
jeremy theler
www.seamplex.com



On Sat, 2017-07-08 at 08:57 +0300, Sergey Shcherbina wrote:
> Hi! 
> 
> I am beginner in this excellent scientific area - GSL and I search
> now a C code 
> for solving the system of nonlinear equations. I will happy if it is
> in GSL's area. 
> 
> Regards,
> Sergey.
> 
> PS. My old C code works for animated html page for earthquake's
> forecasting - http://194.44.29.164/
>