KM2016 / FEM2_1 / fem2 / fem2

#include <ctype.h>
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>

 int bars_N, knots_N, DSign;
 double *force, *strengs, *length, *f, *solution;
 double *up, *down, *diag;
 double  K[100][100],L[100][100], U[100][100];
 double VV[100];
 int Indx[100];
 
 int inputdata(void);
 int output(void);
 void K_matrix(void);
 void progon(int ,double *,double *,double *,double *);