[GiNaC-list] how to use ginac output in gsl at runtime

[Matei Stroila]

I figured it out. I just use expression substitution and numeric 
evaluation, I do not use "csrc_double" to a string.

Matei

Matei Stroila wrote:

> Hello,
>
> Here is what I would like to do and I need a piece of advice on this.  
> I want to use ginac to compute the gradient of a function so that I 
> can use this gradient for the conjugate gradient method in gsl (the 
> GNU scientific library).  I succesfully computed the gradient and I 
> can output its expression with "csrc_double" to a string. How can I 
> use this expression in the definiton of a function at runtime?
>
> I guess other people had this problem too, to use a CAS library in 
> conjuction with a numeric library, at runtime.
>
> Thanks a lot for any suggestion,
>
> Matei
>
>
> _______________________________________________
> GiNaC-list mailing list
> GiNaC-list at ginac.de
> http://thep.physik.uni-mainz.de/mailman/listinfo/ginac-list