Calculating Kc. Needs debugging.

Samo Penic

2014-04-23 f06f5f9ad1e42a10d6a9367513e66c0c06295de2

 src/shcomplex.c

@@ -3,6 +3,10 @@
#include<gsl/gsl_complex.h>
#include<gsl/gsl_complex_math.h>
#include<gsl/gsl_sf_legendre.h>

#include<gsl/gsl_matrix.h>
#include<gsl/gsl_vector.h>
#include<gsl/gsl_linalg.h>
#include "general.h"
#include "sh.h"
#include "shcomplex.h"
@@ -125,3 +129,32 @@
   return TS_SUCCESS;
}


ts_bool calculateKc(ts_vesicle *vesicle){

    ts_int i;
    gsl_matrix *A=gsl_matrix_alloc(vesicle->sphHarmonics->l,2);
    gsl_vector *tau=gsl_vector_alloc(2);
    gsl_vector *b=gsl_vector_alloc(vesicle->sphHarmonics->l);
    gsl_vector *x=gsl_vector_alloc(2);
    gsl_vector *res=gsl_vector_alloc(vesicle->sphHarmonics->l);

    //solving (A^T*A)*x=A^T*UlmSqAvg
    //fill the data for matrix A and vector b
    for(i=1;i<=vesicle->sphHarmonics->l;i++){
            gsl_matrix_set(A, i-1,0,(ts_double)((i-1)*(i+2)));
            gsl_matrix_set(A, i-1,1,(ts_double)((i-1)*(i+2)*(i+1)*i));
            gsl_vector_set(b,i-1,(ts_double)vesicle->sphHarmonics->N/vesicle->sphHarmonics->sumUlm2[i-1][(i-1)*2]);
    }
    fprintf(stderr,"b[2]=%e\n",gsl_vector_get(b,1));
    gsl_linalg_QR_decomp(A,tau);
    gsl_linalg_QR_lssolve(A,tau,b,x,res);
    fprintf(stderr,"kc=%e\n",gsl_vector_get(x,1));

    gsl_matrix_free(A);
    gsl_vector_free(tau);
    gsl_vector_free(b);
    gsl_vector_free(x);
    gsl_vector_free(res);
    return TS_SUCCESS;
}