Re: [Fwd: Help for GLPK Java program]

Dear Titouan,

the library functions are described in detail in file doc/glpk.pdf of 
the GLPK source distribution. Have a look at the chapter "Problem 
retrieving routines". See for instance glp_get_mat_row() and 
glp_get_mat_col().

Best regards

Heinrich

On 04/12/2018 12:12 PM, Andrew Makhorin wrote:
> -------- Forwarded Message --------
> From: SORANGE DELIEGE Titouan
> To: [email protected] <[email protected]>
> Subject: Help for GLPF java program
> Date: Thu, 12 Apr 2018 10:32:40 +0200
> 
> Good morning,
> 
>   
> 
> I am currently working on a linear programming project using GLPK and
> Java.
> 
>   
> 
> I have built the matrix that I need to give to GLPK (with the three
> arguments ia, ja and ar with the glp_load_matrix method) and I have set
> all the coefficients for each constraint of my problem.
> 
>   
> 
> I would like to print all the coefficients from the ar array to have an
> overview of the matrix from GLPK (before the solving) but I don’t know
> which function I should use for that. I tried to use
> GLPK.glp_get_row_prim for each line and each column of that same line
> (with a loop) but the values are all set at 0 and it seems fair as this
> function is used for LP relaxation…
> 
> Thank you for your help.
> 
>   
> 
> Regards,
> 
>   
> 
> Titouan
> 
> 
> 
> 
> 
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